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California-San Mateo-1650 South Amphlett Boulevard Lease - Cornerstone Properties I LLC and Bombardier Software Inc.

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                           BAYSHORE CORPORATE CENTER
                                 OFFICE LEASE

                                    between

                         CORNERSTONE PROPERTIES I, LLC
                                   Landlord

                                      and

                              BOMBARDIER SOFTWARE
                                   as Tenant
<PAGE>

Memorandum



To:     New Bayshore Corporate Center Tenants

From:   Debbie Rangel, Bayshore Corporate Center Leasing Office

Re:     Certificate of Insurance, Bayshore Corporate Center. San Mateo, CA
        ------------------------------------------------------------------

In order to expidite your move in to the Bayshore Corporate Center, you will
need to provide a certificate insurance to our office upon signature of the
Lease. Please contact your insurance agent and provide a certificate with the
following information:

Additional Insured:  Cornerstone Properties I, LLC

<TABLE>
<CAPTION>
<S>                                                                  <C>
Tenant's Minimum General Liability Insurance (Article 16):   $1,000,000.00 per occurance
                                                             $   500,000.00 per person, per occurance
                                                             $   100,000.00 property damage
</TABLE>
Have your insurance company mail or fax a copy to:

               Bayshore Corporate Center
               Debbie Rangel
               1720 S. Amphlett Blvd., Suite 1l0
               San Mateo CA 94404
               Facsimile (415) 574-0610

ALL MOVERS AND VENDORS MUST PROVIDE A CERIFICATE OF INSURANCE.

AGENTS AT BAYSHORE CORPORATE CENTER THAT CAN PROVIDE INSURANCE:
     JIMMY WAYNE WILLINS      415-655-2516
     CHRIS BOONE              415-574-4787
     JEFF TATEOSIAN           415-574-4787
     HOWARD BRONSTEIN         415-349-2600

Should you have any questions, please give me a call at (415) 574-2104. Thank
you for your cooperation.


Sincerely,


Debbie Rangel
<PAGE>

                    BAYSHORE CORPORATE CENTER OFFICE LEASE

                        BASIC LEASE INFORMATION SUMMARY

                                  ("Summary")
<TABLE>
<CAPTION>
<S>                                   <C>
Lease Date:                             June 23, 1997

Building Address:                       1650 So. Amphlett Blvd., Suite 114
                                        San Mateo, Calif. 94402

Correspondence Address:                 1650 So. Amphlett Blvd., Suite 114
                                        San Mateo, Calif. 94402

Landlord:                               CORNERSTONE PROPERTIES I, LLC
                                        A California Limited Liability Company

Address of Landlord:                    Bayshore Corporate Center
                                        1720 So. Amphlett Blvd., Suite 110
                                        San Mateo, CA 94402

Tenant:                                 BOMBARDIER SOFTWARE

Guarantor:                              Felix Lin

Rentable Area of Premises (Article 1):  1,117 rentable square feet (RSF)

Term (Article 2):                       Month to Month
                                        SURRENDER OF LEASED PREMISES: Tenant to
                                        give Landlord at least sixty (60) days
                                        written notice prior to vacating the
                                        leased premises. Landlord has the right
                                        at any time to terminate the Lease with
                                        at least sixty (60) days prior written
                                        notice.

Target Commencement Date:               July 1, 1997

Monthly Base Rent (Article 3):          $2,289.85
                                        $2.05 per square foot, full service, per
                                        month for 1,117 square feet RENT
                                        ADJUSTMENT: There will be an annual
                                        rental increase of at least 5%. The next
                                        scheduled rent adjustment date shall be
                                        February 1, 998. However, the rent may
                                        be adjusted upwards at any time to the
                                        current market rental rate upon not less
                                        than thirty (30) days prior written
                                        notice.

Tenant's Common Area Expense Share (Article 4): .336% (1,117 square feet/332,000 square feet)

Base Year (Article 4):                  1997/1998

Use (Article 5):                        General Office

Tenant's Minimum General Liability Insurance (Article 16):  $1,000,000.00 per occurrence
                                                            $  500,000.00 per person, per occurrence
                                                            $  100,000.00 property damage

Security Deposit (Article 23):          $2,289.85

First months rent and security deposit of $4,579.70 due upon lease execution.
</TABLE>

TENANT IMPROVEMENTS: Landlord Pays: Steam clean carpets and paint.

     Each reference in the Lease to the Summary shall mean the respective
information set forth above and shall be deemed to incorporate all of the terms
provided under the particular Lease paragraph pertaining to such information. To
the extent there is any conflict between the provisions hereof and any more
specific provision of this Lease, such more specific provision shall control.
<PAGE>

<TABLE>
<CAPTION>

                               TABLE OF CONTENTS
                               -----------------

                                                                      Page
<C>  <S>                                                           <C>
  1.   Premises                                                       1
  2.   Term                                                           1
  3.   Rent; Additional Charges                                       1
  4.   Additional Charges for Expenses and Real Estate Taxes          1
  5.   Use                                                            2
  6.   Construction of Premises; Building Changes                     3
  7.   Alterations                                                    3
  8.   Repairs and Maintenance                                        3
  9.   Liens                                                          4
 10.   Compliance with Laws and Insurance Requirements                4
 11.   Protection of Lenders                                          4
 12.   Damage and Destruction                                         5
 13.   Eminent Domain                                                 6
 14.   Assignment and Subletting                                      6
 15.   Utilities and Services                                         7
 16.   Default                                                        8
 17.   Liability of Landlord; Indemnity by Tenant                     9
 18.   Insurance                                                     10
 19.   Access to Premises                                            11
 20.   Notices                                                       11
 21.   Tenant's Certificate                                          11
 22.   Tax on Tenant's Personal Property                             12
 23.   Security Deposit                                              12
 24.   Landlord's Option to Relocate Tenant                          12
 25.   Guarantor                                                     13
 26.   Surrender of Lease Premises                                   13
 27.   Miscellaneous                                              13/14
</TABLE>

EXHIBIT B- Definitions of Real Estate Taxes,
----------
Building Expenses and Common Area Expenses
EXHIBIT C- Rules and Regulations
----------
EXHIBIT D- Phone Agreement
----------
PAGE 21    Letter of Agency
-------
PAGE 22    Exhibit "A" Floor" Plan
-------
<PAGE>

                                                       Bayshore Corporate Center

                                 OFFICE LEASE

     THIS LEASE is entered as of June 23, 1997, by and CORNERSTONE PROPERTIES I,
LLC, a California Limited Liability Company ("Landlord")'and BOMBARDIER SOFTWARE
("Tenant").

     Landlord and Tenant hereby agree as follows:

     1.   PREMISES.

          Subject to the contents of this Lease, Landlord hereby leases to
Tenant and Tenant hereby leases from Landlord the premises described in the
Basic Lease Information Summary (the "Summary") (the "Premises") in the building
described in the Summary (the "Building"), as shown on the floor plan (s)
attached as Exhibit A to this Lease. The Building is part of an office complex
consisting of 1650-1730 S. Amphlett Blvd. (the "Complex"). All measurements of
area contained in this Lease are conclusively agreed to be correct and binding
upon the parties, even if a subsequent measurement of any one of these areas
determines that it is more or less than the amount of area reflected in the
Lease. Any such subsequent determination that the area is more or less than
shown in this Lease shall not result in a change in any of the computations of
rent, improvement allowances or other matters described in this Lease where area
is a factor.

     2.   TERM.

          The term of this lease (the "Term") is Month to Month and commences on
the earlier of (a) the Target Commencement Date; or (b) the date on which Tenant
first occupies all or any portion of the Premises. The dates on which the Term
commences and terminates pursuant to this Article 2 are herein called the
"Commencement Date and the "Expiration Date," respectively. If, for any reason,
Landlord cannot deliver possession of the Premises to. Tenant on or prior to the
Commencement Date, this Lease shall not be void or voidable nor shall Landlord
be liable to Tenant for any loss or damage resulting therefrom. In such case,
Tenant shall not pay any rest and the Commencement Date shall not occur until
such date as Landlord can deliver the Premises, provided, however that if
Landlord's failure to deliver the Premises is attributable to any action or
inaction by Tenant, then the Commencement Date shall not be advanced to the date
on which possession of the Premises is delivered to Tenant and Landlord shall be
entitled to full performance by Tenant (including payment of rent) from the date
the Premises would have been ready for delivery to Tenant but for Tenant's
action or inaction.

     3.   RENT, ADDITIONAL CHARGES.

          3.1 Base Rent. Tenant will pay to Landlord during the Term the monthly
Base Rent set forth in the Summary (the "Base Rent") in consecutive monthly
installments on or before the first day of each calendar month, in advance, at
the address specified for Landlord in the Summary, or such other place as
Landlord may designate in writing, without any prior demand and without any
deductions or setoff. Upon execution of this Lease, Tenant shall pay to Landlord
the first month's Base Rent. If the Commencement Date occurs on a day other than
the first day of a calendar month, or the Expiration Date occurs on a day other
than the last day of a calendar month, then the rental for such fractional month
will be prorated based on a thirty (30) day month.

          3.2 Additional Charges. Tenant shall pay to Landlord all charges and
other amounts required to be paid by Tenant under this Lease (herein called
"Additional Charges") as additional rent at the place where the Base Rent is
payable. Landlord will have the same remedies for a default in the payment of
any Additional Charges as for a default in the payment of Base Rent. (Base Rent
and Additional Charges are sometimes collectively referred to herein as "rent.")

          3.3 Late Charge. If Tenant fails to pay any Base Rent or additional
Charges within five (5) days after the date the same is due and payable, such
unpaid amounts will be subject to a late payment charge equal to ten percent
(10%) of the unpaid amounts in each instance. The late payment charge has been
agreed upon by Landlord and Tenant after negotiation, as a reasonable estimate
of the additional administrative costs and detriment that will be incurred by
Landlord as a result of any such failure by Tenant. the actual costs thereof
being extremely difficult if not impossible to determine. The late payment
charge constitutes liquidated damages to compensate Landlord for its damages
resulting from such failure to pay and shall be paid to Landlord together with
such unpaid amounts.

     4.   ADDITIONAL CHARGES FOR EXPENSES AND REAL ESTATE TAXES.

          4.1 Definition of Expenses. For purposes of this Article 4, the
following terms shall have the
<PAGE>

                                                       Bayshore Corporate Center

meanings set forth in this Section 4.1 "Tenant's Building Percentage Share",
Tenant's Common Area Expense percentage Share" and "Base Year" shall be as set
forth in the Summary. Landlord may adjust these percentages as a result of any
change in the rentable area of the Premises or the total rentable area of the
Building or the other building in the Complex. "Computation Year" means each
calendar year during the Term, including any partial calendar year in which the
Term may commence or terminate. "Real Estate Taxes", "Building Expenses",
"Insurance Expenses" and "Common Area Expenses" are defined in Exhibit B to this
                                                               ---------
Lease.

          4.2 Payment of Charges. From the first day of the thirteenth month of
the Term through the Expiration Date, Tenant shall pay to Landlord as Additional
Charges (i) Tenant's Building Share of the total dollar increase, if any, in
Building Expenses attributable to each Computation Year over Budding Expenses
for the Base Year, (ii) Tenant's Building Share of the total dollar increase, if
any, in Real Estate Taxes attributable to each Computation Year over Real Estate
Taxes for the Base Year, (iii) Tenant's Building Share of the total dollar
increase, if any, in Insurance Expenses attributable to each Computation Year
over Insurance Expenses for the Base Year and (iv) Tenant's Common Area Expense
Share of the total dollar increase, if any, in Common Area Expenses attributable
to each Computation Year over Common Area Expenses for the Base Year. During the
last month of each Computation Year or as soon thereafter as practicable,
Landlord shall give to Tenant notice of Landlord's estimate of the amounts
payable by Tenant for the following Computation Year. On or before the first day
of each month during the following Computation Year, Tenant shall pay to
Landlord one-twelfth (l/12th) of the estimated amounts, provided that until
Landlord gives such notice, Tenant shall continue to pay on the basis of the
prior year's estimate until the first day of the calendar month after Landlord
gives such notice. If at any time or times Landlord determines flint the amounts
payable by Tenant for the current Computation Year will vary from its estimate
given to Tenant, Landlord, by notice to Tenant, may revise its estimate for the
Computation Year, and subsequent payments for the Computation year shall be
based upon the revised estimate. Following the end of each Computation Year,
Landlord shall deliver to Tenant a statement of amounts payable for the
Computation Year. If the statement shows an amount owing by Tenant that is less
than the payments for such Computation Year previously made by Tenant, and if no
Event of Default is outstanding, Landlord shall credit the amount to the next
payments of rent due. If the statement shows an amount owing by Tenant that is
more than the estimated payments for the Computation Year previously made by
Tenant, Tenant shall pay the deficiency to Landlord within thirty (30) days
after delivery of such statement. The respective obligations of Landlord and
Tenant under this Section 4.2 shall survive the Expiration Dale. If the
Commencement Date is a day other than the first day of a Computation Year or the
Expiration Date is a day other than the last day of a Computation Year, the
adjustment in rent pursuant to this Section 4.2 for such Computation Year shall
be prorated based on a 365-day year.

     5.   USE.

          5.1 Limitations. Tenant shall use and continuously occupy the Premises
solely for the use or uses specified in the Summary and for no other use or
purpose. Tenant shall take no action, nor permit any action to be taken, in or
about the Premises that will in any way increase the existing rate of or affect
any fire or other insurance upon the Building or any of its contents, or cause
cancellation of any insurance policy covering all or any part of the Building or
any of its contents, or which will in any way injure or interfere with the
rights of other tenants or occupants of the Building, nor shall Tenant use or
allow the Premises to be used for unlawful or objectionable purpose, nor cause,
maintain or permit any nuisance in, on or about the Premises, nor commit nor
suffer to be committed any waste in, on or upon the Premises. Tenant shall not
use or operate any equipment, machinery or apparatus within the Premises which
will injure, vibrate or shake the Premises or the Building, overload existing
electrical systems or other utilities or equipment servicing the Premises or
Building, or impair the efficient operation of the sprinkler system (if any) or
the heating, ventilating and air conditioning equipment within or servicing the
Premises or the Building. Tenant shall not cause or permit any Hazardous
Materials to be brought upon, stored, used, generated or released or disposed of
on, under, from or about the Premises, Building or Complex (including, without
limitation, the soil and groundwater thereunder) without the prior written
consent of Landlord.

          5.2 Common Area. Tenant shall have a non-exclusive right to use the
Common Area, provided however, that Tenant's use of the Common Area shall be
subject to such roles and regulations as Landlord shall make from time to time.
As used in this Lease. the term "Common Area" shall mean the area and
improvements designated by Landlord from time to time as "Common Area" for the
use and enjoyment of tenants of the Complex. Landlord reserves the right, from
time to time, to: (i) utilize portions of the Common Area for entertainment,
displays, product shows, the leasing of kiosks or such other uses as. in
Landlord's judgment, tend to attract the public, change the shape, size,
location and extent of improvements on the Common Area; (ii) eliminate or add
any improvements; and (iii) temporarily close any portion of the Common Areas
for repairs, remodeling and/or alteration, to prevent a public dedication or the
accrual of prescriptive rights, or for any other reason deemed sufficient by
Landlord.

     6.   CONSTRUCTION OF PREMISES; BUILDING CHANGES.

Landlord shall construct the Premises and perform the work and make the
installations in the Premises substantially as set forth in Exhibit "A" to this
                                                            -----------
Lease (the "floor plan"). Landlord reserves the right, at any
<PAGE>

                                                       Bayshore Corporate Center

time and from time to time. to make alterations, additions, repairs or
improvements to or in or to decrease the size or area of all or any part of the
Building, the fixtures and equipment therein and the areas outside the Building,
and the Common Area, and to change the arrangement and or location of entrances
or passageways, doors, corridors, elevators, stairs, toilets and other public
parts of the Building, provided that any such alterations or additions shall not
materially diminish the quality or quantity of services being provided to the
Premises or adversely affect the functional utilization of the Premises.

     7.   ALTERATIONS.

          7.1 Trade Fixture. During the Term of this Lease, Tenant may install
Tenant's Trade Fixtures which may be removed without material injury to the
Premises on the Premises without the prior consent of Landlord. All Trade
Fixtures shall remain Tenant's property. "Trade Fixtures" shall not include the
initial Tenant Improvements paid for with the funds of Landlord nor any
improvements thereafter made to the Premises by Landlord at any time with
Landlord's Funds.

          7.2 Consent Requirement for Alterations. Tenant shall make no
alterations, additions or improvements (collectively, "Alterations") to the
                                                      -------------
Premises or any part thereof without obtaining the prior written, consent of
Landlord. Such consent may be granted or withheld in Landlord's sole and
absolute discretion. Landlord may impose as a condition to such consent such
requirements as Landlord may deem necessary, in its sole and absolute discretion
including, without limitation: (i) that Landlord be furnished with working
drawings before work commences; (ii) that performance and labor and material
payment bonds be furnished; (iii) that Landlord approve the contractor by whom
the work is to be performed; (iv) that adequate course of construction insurance
be in place and the Landlord is named as an additional insured under the
contractor's liability and property damage policies; and (v) that Landlord's
instructions relating to the manner in which the work is to be done and the
times during which it is to be accomplished be complied with. All such
alterations, additions or improvements must be done in compliance with all
applicable laws, in a good and workmanlike manner and diligently prosecuted to
completion. Tenant shall deliver to Landlord upon commencement of such work, a
copy of the building permit with respect thereto. All such work shall be
performed so as not to obstruct the access to the Premises of any other tenant
in the Building or Complex. Should Tenant make any alterations without
Landlord's prior written consent, Landlord shall have the right, in addition to
and without limitation of any right or remedy Landlord may have under this
Lease, at law or in equity, to require the Tenant to remove all or some of the
alterations at Tenant's sole cost and restore the Premises to the same condition
as existed prior to undertaking the alterations. Tenant shall notify Landlord in
writing at least ten (10) days prior to the commencement of any such work in or
about the Premises and Landlord shall have the right at any time and from time
to time to post and maintain notices of nonresponsibility in or about the
Premises.

          7.3 Possession. All Tenant's Alterations shall remain the property of
Tenant during the Term but shall not be altered or removed from the Premises. At
the expiration or sooner termination of the Term, all Tenant's Alterations shall
be surrendered to Landlord and shall then become Landlord's properly, and
Landlord shall have no obligation to reimburse Tenant for all or any portion of
the value or cost thereof; provided, however, that if Landlord requires Tenant
to remove any Tenant's Alterations, Tenant shall so remove such Tenant's
Alterations, and Tenant shall restore the Premises to the condition which
existed prior to the installation of such Tenant's Alterations, prior to the
expiration or sooner termination of the Term.

     8.   REPAIRS AND MAINTENANCE.

          8.1 Tenant's Obligations. By occupying the Premises, Tenant accepts
the Premises as being in the condition in which Landlord is obligated to deliver
the Premises under the terms of this Lease. Tenant shall, at all times during
the Term, and at Tenant's sole expense, keep and maintain all of the Premises in
good order, condition and repair, including replacement where necessary.
Tenant's obligations shall include, only in the event of negligence, without
limitation(s), all plumbing and sewage facilities within the Premises (including
sinks, faucets, toilets and drains) and all ducts, pipes, vents and other parts
of the HVAC or plumbing system; (ii) all fixtures, interior walls, floors,
carpets and ceilings; (iii) all electrical facilities and all equipment
(including all lighting fixtures, lamps, bulbs, tubes, fans, vents, exhaust
equipment and systems, and all wiring systems (including electrical wiring and
conduits, gas lines, water pipes and plumbing and sewage fixtures and pipes).
Tenant shall at the end of the Term surrender the Premises to Landlord in the
same condition as when received except for ordinary, wear and tear and
Alterations. Landlord has no obligation and has made no promise to alter,
remodel, improve, repair, decorate or paint all or any part of the Premises, the
Building or the Common Area except as specifically set forth in the Lease.

          8.2 Landlord's Obligations. Landlord shall repair and maintain the
structural portions of the Building, the Building systems and the Common Area.
If the necessity for such maintenance and repairs is in any way caused by the
act, neglect, fault, or omission of Tenant, its agents, servants, employees or
invitees, Tenant shall pay promptly to Landlord the reasonable cost of such
maintenance and repairs. Landlord shall not be liable for any failure to make
any such repairs or to perform any such maintenance unless Landlord receives
notice of the need for such
<PAGE>

                                                       Bayshore Corporate Center

repairs or maintenance from Tenant and fails to make such repairs or perform
such maintenance for a reasonable period of time following such notice by
Tenant. Rent shall not abate nor shall Landlord be liable as a result of any
injury to or interference with Tenant's business arising from the making of any
repairs, or the performance of any maintenance, in or to any portion of the
Building, the Premises or the Common Area, excepting the negligence or willful
misconduct of Landlord, Agents, servants, employees, licensees or contractors.

     9.   LIENS.

          Tenant shall keep the Premises and the Building free from any liens
arising out of any work performed, material furnished or obligations recurred by
or for Tenant In the event that Tenant shall not, within ten (10) days following
the imposition of any such lien, cause the lien to be released of record by
payment or posting of a proper bond, Landlord shall have in addition to all
other remedies provided herein and by law the right but not the obligation to
cause same to be released by such means as it shall deem proper, including
payment of the claim giving rise to such lien. All such sums paid by Landlord
and all expenses incurred by it in connection therewith (including without
limitation reasonable counsel fees) shall be payable to Landlord by Tenant upon
demand. Landlord shall have the right at all times to post and keep posted on
the Premises any notices permitted or required by law or that Landlord shall
deem proper for the protection of Landlord, the Premises, and the Building, from
mechanics' and material men's liens. Tenant shall give to Landlord at least five
(5) business days' prior written notice of commencement of any repairer or
construction on the Premises.

     10.  COMPLIANCE WITH LAWS AND INSURANCE REQUIREMENTS.

          Tenant, at Tenant's cost and expense, and irrespective of the cost of
compliance, shall comply with all laws, orders and regulations of federal,
suite, county and municipal authorities relating to the Premises or the use or
occupancy thereof and with all rules, orders, regulations or requirements of the
American Insurance Association (formerly the National Board of Fire
Underwriters) and with any similar body that shall hereafter perform the
function of such Association except that Tenant shall not be requited to make
any structural Alterations in order to comply unless such Alterations shall be
necessitated by Tenants Alterations or Trade Fixtures by Tenant's particular use
of the Premises, by Tenant's application for any permit or governmental approval
and/or by the acts, omissions or negligence of Tenant or its servants,
employees, contractors, agents, visitors or licensees.

     11.  PROTECTION OF LENDERS.

          11.1 Subordination. Without the necessity of any additional document,
this Lease shall be the subject and subordinate at all times to: (a) all
reciprocal easement agreements and all ground leases or underlying leases which
may now exist or hereafter be executed affecting the Building, the land on which
the Building is located or the Common Area, or any of the foregoing, and (b) the
lien of any mortgage or deed of trust which may now exist or hereafter be
executed in any amount for which the Building, land on which the Building is
located, ground leases or underlying leases, or Landlord's interest or estate in
any of said items, is specified as security. Notwithstanding the foregoing,
Landlord shall have the right to subordinate or cause to be subordinated to this
Lease any of the items referred to in clause (a) or (b) above. Tenant shall
execute and deliver, upon demand by Landlord and in the form requested by
Landlord, any additional documents evidencing the priority or subordination of
this Lease with respect to any such ground leases, underlying leases, reciprocal
easement agreements or similar documents or instruments, or with respect to the
lien of any such mortgage or deed of trust and containing such maters as lenders
customarily and reasonably require in connection with such agreements,
including, provisions that the lender will not be liable for. (i) the return of
any security deposit unless the lender receives it from Landlord and (ii) any
defaults on the part of Landlord occurring prior to the time lender takes
possession. Tenant's failure to execute any such document within ten (10) days
after written demand therefor shall constitute an event of Tenant's default by
Tenant under this Lease.

          11.2 Attornment. If Landlord's interest in the Property is acquired by
any ground Landlord, beneficiary, under a deed of trust, mortgagee, or purchaser
at a foreclosure sale, Tenant shall attorn to the transferee of or successor to
Landlord's interest in the Property and recognize such transferee or successor
as Landlord under this Lease. Tenant waives the protection of any statute or
rule of law which gives or purports to give Tenant any right to terminate this
Lease or surrender possession of the Property upon the transfer of Landlord's
interests.

     12.  DAMAGE AND DESTRUCTION.

          12.1 Definition of Terms. For the purposes of this Lease, the term:
(a) "Insured Casualty" means damage to or destruction of the Premises from a
cause actually insured against, for which the insurance proceeds paid or made
available to Landlord are sufficient to rebuild or restore the Premises under
then-existing building codes to the condition existing immediately prior to the
damage or destruction; and (b) "Uninsured Casualty" means damage to or
destruction of the Premises from a cause not actually insured against, or from a
cause actually insured against but for
<PAGE>

                                                       Bayshore Corporate Center

which the insurance proceeds paid or made available to Landlord are for any
reason insufficient to rebuild or restore the Premises under then-existing
building codes to the condition existing immediately prior to the damage or
destruction, or from a cause actually insured against but for which the
insurance proceeds are not paid or made available to Landlord within twelve (12)
months of the event of damage or destruction.

          12.2 Insured Casualty.

               (a) In the event of an Insured Casualty where the extent of
damage or destruction is less than twenty-five percent (25%) of the then full
replacement cost of the Premises or the Building, Landlord shall rebuild or
restore the Premises or the Building substantially to the condition existing
immediately prior to the damage or destruction, provided that there exist no
governmental codes or regulations that would interfere with Landlord's ability
to so rebuild or restore.

               (b) In the event of an insured Casualty when the extent of damage
or destruction is equal to or greater than twenty-five percent (25%) of the then
full replacement cost of the Premises or the Building Landlord may rebuild or
restore the Premises or the Building substantially to the condition existing
immediately prior to the damage or destruction, or terminate this Lease.
Landlord shall notify Tenant in writing within thirty (30) days from the event
of damage or destruction of Landlord's election to either rebuild or restore the
Premises or terminate this Lease.

          12.3 Uninsured Casualty. In the event of an Uninsured Casualty,
Landlord may (i) rebuild or restore the Premises as soon as reasonably possible
at Landlord's expense (unless the damage or destruction was caused by a
negligent or willful act of Tenant in which event Tenant shall pay all costs of
rebuilding or restoring), in which event this Lease shall continue in full force
and effect or (ii) terminate this Lease, in which event Landlord shall give
written notice to Tenant within thirty (30) days after the event of damage or
destruction of Landlord's election to terminate this Lease as of the date of the
event of damage or destruction, and if the damage or destruction was caused by a
negligent or willful act of Tenant, Truant shall be liable therefor to Landlord.
Notwithstanding the foregoing, Landlord shall have no right to terminate this
Lease with respect to an Uninsured Casualty if the cost of rebuilding or
restoring the damage caused thereby is equal to or less than Two Hundred Fifty
Thousand Dollars ($250,000).

          12.4 Tenant's Election. Notwithstanding anything to the contrary
contained in this Article 12, Tenant may elect to terminate this Lease in the
event the Premises are damaged or destroyed and, in the reasonable opinion of
Landlord's architect or construction consultants, the restoration of the
Premises cannot be substantially completed within one hundred eighty (180) days
alter the event of damage or destruction. Tenant's election shall be made by
written notice to Landlord within ten (10) days alter Tenant receives born
Landlord the estimate of the time needed to complete repair or restoration of
the Premises. If Tenant does not deliver said notice within said ten (10) day
period, Tenant may not later terminate this Lease even if substantial completion
of the rebuilding or restoration occurs subsequent to said one hundred eighty
(180) day period, provided that Landlord is proceeding with diligence to rebuild
or restore the Premises. If Tenant delivers said notice within said ten (10) day
period, this Lease shall terminate as of the date of the event of damage or
destruction.

          12.5 Continuance of Lease. If Landlord is required or elects to
rebuild or restore the Premises pursuant to this Article 12, this Lease shall
remain in effect and Tenant shall have no claim against Landlord for
compensation for inconvenience or loss business during any period of repair or
restoration.

          12.6 Damage or Destruction Near End of Lease Term. Notwithstanding
anything to the contrary contained in this Article 12, in the event the Premises
are damaged or destroyed in whole in part (regardless of the extent of damage)
from any cause during the last twelve (12) months of the Lease Term, Landlord
may, at Landlord's option, terminate this Lease as of the date of the event of
damage or destruction by giving written notice to Tenant of Landlord's election
to do so within thirty (30) days after the event of such damage or destruction.
For purposes of this Section 12.6, if Tenant has been granted an option to
extend or renew the Lease Term pursuant to another provision of this Lease, then
the damage or destruction shall be deemed to have occurred during the last
twelve (12) months of the Lease Term if Tenant fails to exercise its option to
extend or renew within twenty (20) days of the event of damage or destruction.

          12.7 Termination of Lease. If the Lease is terminated pursuant to this
Article 12, the current Rentals shall be proportionately reduced during the
period following the event of damage or destruction until the date on which
Tenant surrenders the Premises, based upon the extent to which the damage or
destruction interferes With Tenant's business conducted in the Premises, as
reasonably determined by Landlord, to the extent such loss is covered as an
insured peril by the insurance carried by Landlord, and to the extent the
resulting loss of income is covered by rental income or other insurance carried
by Landlord.

          12.8 Abatement of Rentals. If the Premises are to be rebuilt or
restored pursuant to this Article 12, the then current Rentals shall be
proportionately reduced during the period of repair or restoration, based upon
the
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                                                       Bayshore Corporate Center

extent to which the making of repairs interferes with Tenant's business
conducted in the Premises, as reasonably determined by Landlord. In the event
Tenant reasonably disputes Landlord's determination regarding Rentals in Section
12.7 above and/or in the preceding sentence, then Tenant shall, within thirty
(30) days following written notice to Tenant of such determination by Landlord,
have the right to send Landlord written notice objecting to such determination
and requesting that Landlord and Tenant determine by arbitration the extent to
which Rentals should be proportionately reduced during the period described in
Section 12.7 above or the period of repair or restoration, which arbitration
shall be carried out pursuant to the rules and procedures of the American
Arbitration Association. All costs and expenses of any such arbitration shall be
shared equally by Landlord and Tenant. The determination of any such arbitration
shall be binding upon Landlord and Tenant.

          12.9 Liability for Personal Property. In no event shall Landlord have
any liability for, nor shall it be required to repair or restore, any injury or
damage to any improvements, alterations or additions to the Premises made by
Tenant, wade fixtures, equipment, merchandise, furniture, or any other property
installed by Tenant or at the expense of Tenant, If Landlord or Tenant do not
elect to terminate this Lease pursuant to this Article 12, Tenant shall be
obligated to promptly rebuild or restore the same to the condition existing
immediately prior to the damage or destruction.

          12.10 Waiver of Civil Code Remedies. Landlord and Tenant acknowledge
that the rights and obligations of the parties upon damage or destruction of the
Premises are as set forth herein; therefore Tenant hereby expressly waives any
rights to terminate this Lease upon damage or destruction of the Premises,
except as specifically provided by this Lease, including without limitation any
rights pursuant to the provisions of Subdivision 2 of Section 1932 and
Subdivision 4 of Section 1933 of the California Civil Code, as amended from time
to time, and the provisions of any similar law hereinafter enacted, which
provisions relate to the termination of the hiring of a thing upon its
substantial damage or destruction.

     13.  EMINENT DOMAIN.

          If all or any part of the Premises shall be taken as a result of the
exercise of the power of eminent domain or any transfer in lieu thereof, this
Lease shall terminate as to the part so taken as of the date of taking, and, in
the case of a partial taking either Landlord or Tenant shall have the right to
terminate this Lease as to the balance of the Premises by written notice to the
other within thirty (30) days after such date; provided, however, a condition to
Tenant's right to terminate shall be that Tenant's use of the balance of the
Premises is substantially handicapped, impeded or impaired by the taking. If any
material party of the building shall be taken, Landlord shall have the right to
terminate this Lease by written notice to Tenant within thirty (30) days of the
date of taking. In the event of any taking, Landlord shall be entitled to any
and all compensation, damages, income, rent, awards, or any interest therein
whatsoever which may be paid or made in connection therewith, and Tenant shall
have no claim against the Landlord for the value of any unexpired term of this
Lease or otherwise; provided, Landlord shall have no claim to any portion of the
award that is specifically allocable to Tenant's relocation expenses or the
interruption of or damage to Tenant's business. In the event of a partial taking
of the Premises which does not result in a termination of this Lease, the Base
Rent and Additional Charges thereafter to be paid shall be equitably reduced.

     14.  ASSIGNMENT AND SUBLETTING.

          14.1 In General. Tenant shall not directly or indirectly, voluntarily
or by operation of law, sell, assign, encumber, pledge or otherwise transfer or
hypothecate its interest in or rights with respect to the Premises or Tenant's
leasehold estate hereunder (collectively, "Assignment"), or permit all or any
portion of the Premises to be occupied by anyone by other than Tenant or sublet
all or any portion of the Premises or transfer a portion of its interest in or
rights with respect to Tenant's leasehold estate hereunder (collectively,
"Sublease") without Landlord's prior consent in each instance.

          14.2 Notice to Landlord. If Tenant desires at any time to enter in an
Assignment or a Sublease, Tenant shall first give notice to Landlord of its
desire to do so, which notice shall contain (a) the name and address of the
proposed assignee or subtenant, (b) the nature of the proposed assignee's or
subtenant's business to be carried on in the Premises, (c) the terms and
provisions of the proposed Assignment or Sublease. in addition thereto, Tenant
shall furnish to Landlord such financial information as Landlord may reasonably
request concerning the proposed assignee or subtenant.

          14.3 Landlord's Option. At any time within fifteen (15) days after
Landlord's receipt of the notice specified in Section 14.2, Landlord may by
notice to Tenant elect to (a) terminate this Lease as to the portion (including
all) of the Premises that is specified in Tenant's notice, with a proportionate
abatement in the Base Rent, (b) consent to the Sublease or Assignment, or (c)
disapprove the Sublease or Assignment; provided, however, if the Landlord elects
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                                                       Bayshore Corporate Center

not to exercise the option described in (a) above, Landlord shall not
unreasonably withhold its consent to the Assignment or Sublease. Tenant shall
pay as additional rent, Landlord's reasonable attorneys' fees incurred in
connection with the review of any proposed Assignment or Sublease. Tenant agrees
to pay Landlord the amount by which all sums payable to Tenant in connection
with such Assignment or Sublease exceed the total of (a) Base Rent payable by
Tenant to Landlord hereunder, (b) reasonable leasing commission recurred by
Tenant in connection therewith, and (c) the cost of any Alterations reasonably
recurred in connection therewith. If Landlord consents to the Sublease or
Assignment within such fifteen (15) day period, Tenant may thereafter within
sixty (60) days after Landlord's consent enter into such Assignment or Sublease
with such approved assignee or subtenant upon the terms and conditions set forth
in the notice furnished by Tenant to Landlord pursuant to Section 14.2. No
Assignment or Sublease shall be binding on Landlord until Tenant delivers an
executed copy of such Assignment or Sublease to Landlord.

          14.4 No Release. No consent by Landlord to any Assignment or Sublease
by Tenant shall relieve Tenant of any obligation to be performed by Tenant under
this Lease, whether arising before or after the Assignment or Sublease. The
consent by Landlord to any Assignment or Sublease shall not relieve Tenant from
the obligation to obtain Landlord's express consent to any other Assignment or
Sublease. Any Assignment or Sublease that fails to comply with this Article 14
shall be void and, at the option of Landlord, shall constitute an Event of
Default by Tenant under this lease. The acceptance of Base Rent or Additional
Charges by Landlord from a proposed assignee or subleasee shall not constitute
consent to such Assignment or Sublease by Landlord.

          14.5 Affiliates. Occupancy of all or part of the Premises by a parent,
subsidiary or affiliated companies of Tenant or Tenant's parent or Tenant's
subsidiary shall not be deemed an assignment or subletting provided that such
parent, subsidiary or affiliated companies were not formed as a subterfuge to
avoid the obligation of this Article 14.

     15.  UTILITIES AND SERVICES.

          15.l Landlord's Obligations. Landlord agrees to furnish to the
Premises, subject to the rules and regulations of the Building, (a) at all
times, electricity for normal lighting and fractional horsepower office machines
in. an amount not to exceed .025 KWH per square foot per normal business day,
nonattended freight and passenger. elevator service, and water for lavatory and
drinking purposes, and (b) from 8:00 a.m. to 6:00 p.m. Monday through Friday,
except for generally recognized business holidays in San Marco, California, heat
and air-conditioning required in Landlord's judgment for the comfortable use and
occupation of the Premises. Landlord may reduce elevator service on evenings,
weekends and holidays. Landlord shall provide sufficient janitorial service for
general office use, as reasonably determined by Landlord. Landlord shall not be
liable for, and Tenant shall not be entitled to, any reduction of Base Rent by
reason of (x) the installation, use of or interruption of use of any equipment
in connection with the furnishing of any of the foregoing services (y) the
failure to furnish or delay in furnishing any of the foregoing services when
such failure is caused by accident, breakage, repairs, strikes, lockouts or
other labor disturbance or labor disputes of any character, or by any other
cause, similar or dissimilar, beyond the reasonable control of Landlord or by
the making of any repairs or improvements to the Premises or to the Building or
any portion of either, or (z) the limitation, curtailment, rationing or
restrictions on use of water, electricity, gas or any other utility servicing
the Premises or the Building by any utility or governmental agency, if Tenant
requests additional or after-hours heating or air conditioning, Landlord shall
provide such service provided that Tenant pays Landlord's reasonable charge for
such services. Tenant further agrees to cooperate fully at all times with
Landlord and to abide by all regulations and requirements which Landlord may
prescribe (including, without limitation, maintaining all window coverings in
the Premises closed whenever the system is in operation) for the proper function
and control of the air conditioning system.

          15.2 Restrictions. Tenant shall not use any apparatus or device in the
Premises using in excess of 120 volts, that will in any way increase the amount
of electricity usually furnished or supplied for the use of the Premises as
general office space; nor connect with electric current, except through existing
electrical outlets in the Premises, any apparatus or device, for the purpose of
using electric current. If the Tenant shall require water or electric current in
excess of the amount usually furnished or supplied for the use of the Premises
as general office space, Tenant shall first procure the prior consent of
Landlord to the use of such excess water or electric current, which consent
Landlord may refuse in its sole discretion. Landlord may condition its consent
upon Tenant's agreement to reimburse Landlord monthly for the excess cost
thereof, based upon an estimate agreed upon by Landlord and Tenant. or, if the
parties fail to agree, as established by an independent licensed engineer.

     16.  DEFAULT.

          16.1 Events of Tenant's Default. Tenant shall be in default of its
obligations under this Lease if any of the following events occurs (an "Event of
Tenant's Default"):

               (a) Tenant shall have failed to pay Base Rent or Additional
Charges when due, and such failure is not cured within three (3) days after
delivery of written notice from Landlord specifying such failure to pay; or
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                                                       Bayshore Corporate Center

               (b) Tenant shall have failed to perform any term, covenant, or
condition of this Lease except those requiring the payment of Base Rent or
Additional Charges, and Tenant shall have failed to cure such breach within ten
(10) days after written notice from Landlord specifying the nature of such
breach where such breach could reasonably be cured within said ten (10) day
period, or if such breach could not be reasonably cured within said ten (10) day
period, Tenant shall have failed to commence such cure within stud ten (10) day
period and thereafter continue with due diligence to prosecute such cure to
completion within such time period as is reasonably needed but not to exceed
thirty (30) days from the date of Landlord's notice; or

               (c) Tenant shall have sublet the Premises or assigned its
interest in the Lease in. violation of the provisions contained in Section 14;
or

               (d) Tenant shall have abandoned the Premises or left the Premises
substantially vacant; or

               (e) The occurrence of the following: (i) the making by Tenant of
any general arrangements or assignments for the benefit of creditors; (ii)
Tenant becomes a "debtor" as defined in 11 U.S.C. Section 101 or any successor
statute thereto (unless, in the case of a petition filed against Tenant, the
same is dismissed within 60 days); (iii) the appointment of a trustee or
receiver to take possession of substantially all of Tenant's assets located at
the Premises or of Tenant's interest in this Lease, where possession is not
restored to Tenant within thirty (30) days; or (iv) the attachment, execution or
other judicial seizure of substantially all of Tenants assets located at the
Premises or of Tenant's interest in this Lease, where such seizure is not
discharged within thirty (30) days; provided, however, in the event that any
provision of this Section 16.1 (e) is contrary to any applicable Law, such
provision shall be of no force or effect; or

               (f) Tenant shall have failed to deliver documents required of
Tenant pursuant to Section 11 or 21 within the time periods specified therein.

The notice periods provided for in this Section 16.1 are intended to satisfy any
and all notice requirements imposed on Landlord by law (including, without
Limitation, California Code of Civil Procedure Section 1161) and are not in
addition to any such requirement.

          16.2 Landlord's Remedies. If an Event of Tenant's Default occurs,
Landlord shall have the following remedies, in addition to all other rights and
remedies provided by any Law or otherwise provided in this Lease, to which
Landlord may resort cumulatively or in the alternative:

               (a) Landlord may keep this Lease in effect and enforce its rights
and remedies under this Lease, Landlord may enter the Premises and release them
to third parties for Tenant's account for any period, whether shorter or longer
than the remaining Term. Tenant shall be liable immediately to Landlord for all
costs Landlord incurs in releasing the Premises, including brokers' commissions,
expenses of altering and preparing the Premises required by the releasing. No
act by Landlord allowed by this subparagraph or intended to mitigate the adverse
effects of a breach of this Lease by Tenant shall terminate this Lease unless
Landlord notifies Tenant in writing that Landlord elects to terminate this
Lease. Notwithstanding any releasing without termination, Landlord may later
elect to terminate this Lease because of the default by Tenant. Landlord may
enforce all its rights and remedies under this Lease, including the right to
recover the Rent as it becomes due under the Lease as provided in California
Civil Code Section 1951.4.

               (b) Landlord may terminate this Lease by giving Tenant written
notice of termination in which event this Lease shall terminate on the date set
for termination in such notice. In the event Landlord terminates this Lease,
Landlord shall be entitled, at Landlord's election, to damages in an amount as
set forth in California Civil Code Section 1951.2 as in effect on the Effective
Date. For purposes of computing damages pursuant to California Civil Code
Section 1951.2, an interest raze equal to the Interest Rate shall be used where
permitted. Such damages shall include:

                   (1) The worth at the time of award of the amount by which the
unpaid Rent for the balance of the term after the time of award exceeds the
amount of such rental loss that Tenant proves could be reasonably avoided,
computed by discounting such amount at the discount rate of the Federal Reserve
Bank of San Francisco at the time of award plus one percent (1%); and

                   (2) Any other amount necessary to compensate Landlord for all
detriment proximately caused by Tenant's failure to perform Tenant's obligations
under this Lease, or which in the ordinary course of things would be likely to
result therefrom, including the following: (i) expenses for cleaning, repairing
or restoring the Premises; (ii) expenses for altering, remodeling or otherwise
improving the Premises for the purpose of reletting,
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                                                       Bayshore Corporate Center

including installation of leasehold improvements (whether such installation be
funded by a reduction of rent, direct payment or allowance to a new tenant, or
otherwise); (iii) broker's fees, advertising costs and other expenses of
reletting the Premises; (iv) costs of carrying the Premises, such as taxes,
insurance premiums, utilities and security precautions; (v) expenses in retaking
possession of the Premises; and (vi) attorneys' fees and court costs incurred by
Landlord in retaking possession of the Premises and in releasing the Premises or
otherwise incurred as a result of Tenant's default.

               (c) Nothing in this Section 16.2 shall limit Landlord's right to
indemnification from Tenant as provided in Sections 17.3. Any notice given by
Landlord in order to satisfy the requirements of this Section 16.2 shall also
satisfy the notice requirements of California Code of Civil Procedure Section
1161 regarding unlawful detainer proceedings.

          16.3 Waiver. One party's consent to or approval of any act by the
other party requiring the first party's consent or approval shall not be deemed
to waive or render unnecessary the first party's consent to or approval of any
subsequent similar act by the other party. The receipt by Landlord of any rent,
payment interest or late charge with or without knowledge of the breach of any
other provision hereof shall not be deemed a waiver of any such breach unless
such waiver is in writing and signed by Landlord. No delay or omission in the
exercise of any right or remedy accruing to either party upon any breach by the
other party under this Lease shall impair such right or remedy or be construed
as a waiver of any such breach theretofore or thereafter occurring. The waiver
by either party), of any breach of any provision of this Lease shall not be
deemed to be a waiver of any subsequent breach of the same or of any other
provisions herein contained.

          16.4 Limitation on Exercise of Right. At any time that an Event of
Tenant's Default has occurred and remains uncured, (i) Landlord may deny or
withhold any consent or approval requested of it by Tenant which Landlord would
otherwise be obligated to give; and (ii) Tenant may not exercise any option to
extend, right to terminate this Lease, or other right granted to it by this
Lease which would otherwise be available to it.

          16.5 Waiver by Tenant of Certain Remedies. Tenant waives the
provisions of Sections 1932(1), 1941 and 1942 of the California Civil Code and
any similar or successor law regarding Tenants right to terminate this Lease or
to make repairs and deduct the expenses of such repairs from the rent due under
this Lease. Tenant hereby waives any right of redemption or relief from
forfeiture under the laws of the State of California, or under any other,
present or future law, including the provisions of Sections 1174 and 1179 of the
California Code of Civil Procedure.

          16.6 Remedies Cumulative. All rights, privileges and remedies of the
parties are cumulative and not alternative or exclusive to the extent permitted
by law except as otherwise provided herein.

     17. LIABILITY OF LANDLORD; INDEMNITY BY TENANT.

          17.1 Limitation on Landlord's Liability. Landlord shall not be liable
to Tenant, nor shall Tenant be entitled to terminate this Lease or to any
abatement of Rent, for any injury to Tenant or any parties affiliated with
Tenant, damage to the property of Tenant or any parties affiliated with Tenant,
or loss to Tenant's business resulting from any cause, including without
limitation any: (i) failure, interruption or installation of any HVAC or other
utility system or service; (ii) failure to furnish or delay in furnishing any
utilities or services when such failure or delay is caused by fire or other
peril, the elements, labor disturbances of any character, or any other accidents
or other conditions beyond the reasonable control of Landlord; (iii) limitation,
curtailment, rationing or restriction on the use of water or electricity, gas or
any other form of energy or any services or utility serving the Complex; (iv)
vandalism or forcible entry by unauthorized persons or the criminal act of any
person; or (v) penetration of water into or onto any portion of the Building
through roof leaks or otherwise. Notwithstanding the foregoing but subject to
Sections 17.2 and 18.3, Landlord shall be liable for any such injury, damage or
loss which is proximately caused by Landlord's willful misconduct or gross
negligence of which Landlord has actual notice and a reasonable opportunity to
cure but which it fails to so cure.

          17.2. Limitation on Tenant's Recourse. If Landlord is a corporation,
trust, partnership, joint venture, unincorporated association or other form of
business entity: (i) the obligations of Landlord shall not constitute personal
obligations of the officers, directors, trustees, partners, joint ventures,
members, owners, stockholders, or other principals or representatives of such
business entity; and (ii) Tenant shall not have recourse to the assets of such
officers, directors, trustees, partners, joint ventures, members, owners,
stockholders, principals or representatives except to the extent of their
interest in the Premises. Notwithstanding anything to the contrary in this
Lease, Tenant shall have recourse only to the interest of Landlord in the
Premises for the satisfaction of each and every remedy of Tenant in the event of
default by Landlord hereunder; such exculpation of personal liability is
absolute and without exception whatever.

          17.3 Indemnification of Landlord. Tenant shall hold harmless,
indemnify, protect and defend Landlord, and its employees, agents, contractors,
directors, partners, shareholders, officers, advisors, consultants and
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                                                       Bayshore Corporate Center

lenders, with legal counsel satisfactory to Landlord from all liability,
penalties, losses, damages, costs, expenses (including attorneys' fees and court
costs), causes of action, claims and/or judgments arising by reason of any
death, bodily injury, personal injury or property damage resulting from (i) any
cause or causes whatsoever (other than the willful misconduct or gross
negligence of Landlord of which Landlord has had notice and a reasonable time to
cure, but which Landlord has failed to cure) occurring in or about or resulting
from an occurrence in or about the Premises, the Complex or associated parking
areas and walkways during the Lease Term; (ii) the negligence or willful
misconduct of Tenant or any party affiliated with Tenant, wherever the same may
occur; or (iii) an Event of Tenant's Default. The provisions of this Section
17.3 shall survive the expiration or sooner termination of this Lease.

          17.4 Notice of Claim or Suit. Tenant shall promptly notify Landlord of
any claim, action, proceeding or suit instituted or threatened against Tenant of
which Tenant received notice or of which Tenant acquires knowledge and which
names Landlord as a party thereto.

          17.5 Waiver of Jury Trial. Landlord and Tenant each acknowledges that
it is aware of and has had the advice of counsel of its choice with respect to
its rights to trial by jury, and each party does hereby expressly and knowingly
waive and release all such rights to trial by jury in any action, proceeding or
counterclaim brought by either party hereto against the other (and/or against
its officers, directors, employees, agents, or subsidiary or affiliated
entities) on any matters whatsoever arising out of or in any way connected with
this Lease, Tenant's use of occupancy of the Premises, and/or any claim of
injury or damage.

          17.6 Sale of Premises. In the event of any sale or transfer of the
Premises the seller, transferor or assignor shall be and hereby is entirely
freed and relieved of all agreements, covenants and obligations of Landlord
thereafter to be performed and it shall be deemed and construed without further
agreement between the parties or their successors in interest or between the
parties and the purchaser, transferee or assignee on any such sale, transfer or
assignment that such purchaser, transferee or assignee has assumed and agreed to
carry out any and all agreements, covenants and obligations of Landlord
hereunder.

     18.  INSURANCE.

          18.1 Tenant's Insurance. Tenant shall procure at its cost and expense
and keep in effect during the Term broad form comprehensive general liability
insurance, including, without limitation, contractual liability for Tenant's
indemnity obligation contained in Section 17 and specific coverage of risks
arising out of any activities of Tenant pursuant to Articles 7 and 8, with a
combined single limit of liability in an amount equal to the amount set forth in
the Summary. Such coverage shall be in a comprehensive general liability form
with at least the following endorsements to the extent such endorsements are
generally available: (i) deleting any employee exclusion on personal injury
coverage, (ii) including employees as additional insureds, (iii) providing for
blanket contractual coverage and broad form property damage coverage, (iv)
deleting any liquor liability exclusions, and (v) providing for coverage of
employees' automobile non ownership liability. Such insurance shall name
Landlord and any other party designated by Landlord as an additional insured,
shall be carried by companies licensed to do business in California and which
have a general policy holders' rating of at least "VIII" as set forth in the
most current issue of "Best's Insurance Guide", shall specifically include the
liability assumed hereunder by Tenant, shall provide that it is primary
insurance and not in excess over or contributory with any other valid, existing
and applicable insurance covering the same loss carried by Landlord or any other
party, shall provide for severability of interests, shall further provide that
an act or omission of one of the named insiders which would void or otherwise
reduce coverage shall not reduce or void the coverage as to any insured, shall
afford coverage for all claims based on acts, omissions, injury or damage which
occurred or arose (or the onset of which occurred or arose) in whole or part
during the policy period, and shall provide that Landlord will receive thirty
(30) days' written notice from the insurer prior to any cancellation or change
of coverage. Tenant shall deliver policies of such insurance or certificates
thereof to Landlord on or before the Commencement Date, and thereafter at least
thirty (30) days before the expiration dates of expiring policies; and in the
event Tenant shall fail to procure such insurance, or to deliver such policies
or certificates, Landlord may, at its option, procure same for the account of
Tenant, and the cost thereof shall be paid to Landlord within five (5) days
after delivery to Tenant of bills therefore. Tenant shall be responsible, at its
cost and expense, for separately insuring Tenant's property. The amounts of such
insurance shall be subject to adjustment from time to time as requested by
Landlord based upon Landlord's determination of the amount of such insurance
generally required for comparable tenants, premises and buildings in the general
geographic location of the Building or required by a lender with an interest in
the Building.

          18.2 Landlord's Insurance. Landlord shall maintain all risk property
insurance covering the estimated replacement cost of the Building. Landlord may,
but is not obligated to, maintain such other insurance and additional coverages
as it may deem necessary, including, but not limited to, commercial liability
insurance and rent loss insurance. The cost of such insurance to Landlord shall
be deemed an Insurance cost. The Building may be included in a blanket policy
(in which case the cost of such insurance allocable to the Building will be
determined by Landlord based upon the insurer's cost calculations).
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                                                       Bayshore Corporate Center

          18.3 Waiver of Subrogation. Notwithstanding anything to the contrary
contained herein, to the extent of insurance proceeds received with respect to
the loss, Landlord and Tenant each hereby waives any right of recovery against
the other party and against any other party maintaining a policy of insurance
with respect to the Building or any portion thereof or the contents of any of
the same, for any loss or damage maintained by such other party with respect to
the Building, or the Premises or any portion thereof or the contents of the same
or any operation therein, whether or not such a loss is caused by the fault or
negligence of such other party.

     19.  ACCESS TO PREMISES.

          Landlord, its agents and representatives shall have the right to enter
the Premises at all reasonable times and, except in cases of emergency, after
giving Tenant reasonable notice for any purpose deemed necessary or desirable by
Landlord. Rent shall not abate as a result thereof. Landlord shall use
reasonable efforts to minimize any interference wire Tenant's use of the
Premises for its normal business purposes. Tenant hereby waives any claim for
damages for any injury or inconvenience to or interference with Tenant's
business, any loss of occupancy or quiet enjoyment of the Premises or any other
loss occasioned thereby excepting the negligence or willful misconduct of
Landlord, agents, servants, employees, licensees or contractors. No entry by
Landlord under any circumstances shall be construed or deemed to be a forcible
or unlawful entry into or a detainer of, the Premises, or an eviction, actual
or, constructive, of Tenant from the Premises or any portion thereof. Tenant
acknowledges that in the event the Lease is not renewed, that the Landlord shall
have the right to show prospective tenants the Leased premises during the last
ninety (90) days of the Lease term without prior notice to Tenant.

     20.  NOTICES.

          Notices or other communications under this Lease shall be effective
only if given in writing sent by certified mail, by facsimile telecopy or by
courier service with a return receipt requested or delivered personally: (a) to
Tenant (i) at Tenant's address set forth in the Summary, if seat prior to
Tenant's taking possession of the Premises, or (ii) at the Premises, if sent
subsequent to Tenant's taking possession of the Premises, or (b) to Landlord at
Landlord's set forth in the Summary, or (c) to either Landlord or Tenant at such
other address as either Landlord or Tenant may designate as its new address for
such purpose by notice given to the other in accordance with the provisions of
this. Article. A notice shall be deemed to have been given (i) on the third
(3rd) business day after mailing of such notice was deposited in the United
States mail, postage prepaid, addressed to the party at the foregoing address,
(ii) when delivered if given by personal delivery; and in all other cases when
actually received at the address for notices set forth above.

     21.  TENANT'S CERTIFICATE.

          Tenant at any time and from time to time upon not less than ten (10)
day's prior written notice from Landlord, will execute, acknowledge and deliver
to Landlord a certificate stating that this Lease is in full force and effect,
specifying the dates to which rent has been paid thereunder and certifying to
such other matters as Landlord may reasonably request. Any such certificate may
be relied upon by Landlord and by any prospective purchaser or mortgagee
considering the purchase of or a loan on all or any party of the Building or any
interest thereto.

     22.  TAX ON TENANT'S PERSONAL PROPERTY.

          At least ten (10) days prior to delinquency, Tenant shall pay all
taxes levied or assessed upon Tenant's Property and shall deliver satisfactory
evidence of such payment to Landlord, If, as determined by Landlord, the
assessed value of Landlord's property is increased by the inclusion thereto of a
value placed upon Tenant's Property, Tenant shall promptly pay such increased
amount to Landlord.

     23.  SECURITY DEPOSIT.

          Upon execution of this Lease, Tenant shall pay to Landlord, Tenant's
security deposit for the faithful performance of all terms, covenants and
conditions of this Lease in the amount specified in the Summary. Landlord may
apply any part of the security deposit to: (i) remedy any default by Tenant in
the payment of rent; (ii) repair damage to the Premises caused by Tenant; (iii)
clean the Premises upon termination of the Lease; and (iv) remedy any other
default of Tenant to the extent provided by Law. Tenant hereby waives the
restriction contained in California Civil Code Section 1950.7. Should Landlord
use any portion of the security deposit, Tenant shall forthwith replenish the
security deposit to the original amount, if Tenant shall fully and faithfully
perform every provision of this Lease, the remaining balance of the security
deposit, if any, shall be returned to Tenant (or, at Landlord's option, to the
last assignee of Tenant's interest hereunder) within thirty (30) days after the
Expiration Date. In the event of termination of Landlord's interest in this
Lease, Landlord may transfer the security, deposit to Landlord's successor in
interest and, upon such transfer, Landlord shall be relieved of any and all
liability for or obligation with respect to the security
<PAGE>

                                                       Bayshore Corporate Center

deposit. Landlord shall not be deemed a Trustee of the Security Deposit, may use
the Security Deposit in Landlord's business, one shall not be required to
segregate it from its general accounts.

     24.  LANDLORD'S OPTION TO RELOCATE TENANT.

          24.1 Substituted Premises. Landlord may relocate Tenant to any other
space in the Complex at any time during the term of this Lease provided that:
(i) Landlord provides Tenant with prior written notice thereof ("Relocation
Notice") at least thirty (30) days in advance; and (ii) the square footage of
space to which Tenant is relocated ("Relocation Premises") equals or exceeds the
square footage of the Premises. In the event that Landlord delivers a Relocation
Notice to Tenant, Tenant shall deliver to Landlord within two (2) business days
of receipt thereof written notice ("Confirmation Notice") to Landlord confirming
Tenant's receipt of the Relocation Notice and acknowledging the relocation of
the Premises to the Relocation Premises. In the event that Landlord exercises
its right to move Tenant to a Relocation Premises, Landlord shall, at Landlord's
sole cost and expense, (a) construct tenant improvements in the Relocation
Premises which are substantially similar to the configuration of the tenant
improvements in the Premises, taking any differences in configuration between
the Premises and Relocation Premises into account; and (b) move Tenant's
inventory, furniture and personal property to the Relocation Premises.

Tenant shall provide Landlord with the current inventory or printing which is to
be replaced. All printing to be done by a printer chosen by Bayshore Corporate
Center. During the period of time commencing upon Tenant's receipt of the
Relocation Notice and ending upon Tenant's receipt of the Completion Notice (as
defined below), Tenant shall continue to conduct its business in the Premises to
the maximum extent possible. In no event shall Tenant be entitled to, and Tenant
hereby waives, any claim for abatement of Rent, loss of profits or any other
amount due to Landlord's relocation of Tenant to the Relocation Premises.

          24.1a Overhead Costs. Landlord shall at Landlord's sole expense, pay
the expense of preparing the relocation premises to (a) a similar construction
of current premises, (b) moving of tenants inventory, furniture and personal
property, (c) relocation of telephone system, computer systems and wiring, and
(d) cost of replacement stationary and other associated printing upon Tenant
providing inventory of current stationary, and (e) any other reasonably
associated fees.

          24.2 Amendment. In the event that Landlord relocates Tenant pursuant
to this Section 24, Tenant's occupancy of the Relocation Premises shall be upon
all of the same terms and conditions (including rent) that applied to the
Premises. If requested by landlord, Tenant shall promptly execute an amendment
to the Lease confirming the relocation of Tenant to the Relocation Premises and
showing the floor plan therefor.

          24.3 Landlord's Termination Right. In the event that Tenant shall fail
to either. (i) deliver to Landlord the Confirmation Notice when due; (ii)
surrender the Premises upon receipt of the Completion Notice; or (iii) commence
business at the Relocation Premises at the end of the Move-In Period, Landlord
may immediately terminate this Lease and all of the obligations and liabilities
of Landlord hereunder upon written notice thereof to Tenant and, thereafter,
Landlord shall have all rights and remedies under the Lease and applicable Law.

     25.  GUARANTOR.

          The obligations of Tenant under this Lease shall be guaranteed in
their entirety by the Guarantor described on the "Summary Page" of the Basic
Lease Provisions. if Guarantor is or becomes bankrupt or insolvent, makes an
assignment for the benefit or creditors, or institutes or is the subject of any
proceeding under the Bankruptcy Act or other similar law for the protection of
creditors (or, if Guarantor is a partnership or consists of more than one person
or entity, if any partner of the partnership or such other person or entity is
or becomes bankrupt or insolvent, institutes any such proceeding, or makes an
assignment for the benefit or creditors), then Landlord shall have the option to
terminate this Lease upon thirty (30) days written notice unless Tenant, within
such thirty (30) day period, provides Landlord with either (i) a substitute or
additional guarantor satisfactory to Landlord and any Lender, or (ii) adequate
assurance of the performance of each and every obligation of Tenant hereunder,
satisfactory to Landlord and such Lender; provided, however, that no such
termination of this Lease shall become effective without the prior written
consent of such Lender.

     26.  SURRENDER OF LEASED PREMISES.

          26.1 Tenant shall, at least sixty (60) days before the last day of the
term hereof, give to Landlord a written notice of intention to surrender the
leased premises on that date, but nothing contained herein shall be construed as
an extension of the term hereof or as consent of Landlord to any holding over by
Tenant. At the end of the term or
<PAGE>

                                                       Bayshore Corporate Center

any renewal thereof or other sooner termination of this Lease, Tenant will
peaceably deliver up to the Landlords possession of the leased premises,
together with all improvements or additions upon or belonging to the same, by
whosoever made, in the same condition as received, or first installed, ordinary
wear and tear and damage by fire, earthquake, act of God or the elements alone
excepted. Tenant may, upon the termination of this Lease, remove, at Tenants
sole cost, all trade fixtures installed by Tenant, title to which shall be in
Tenant until such termination, repairing any damage to the leased caused by such
removal. Any of Tenants personal property and trade fixtures not removed by
Tenant at the end of the term or other sooner termination of this Lease shall be
deemed abandoned by the Tenant if Landlord so elects, and Landlord shall remove,
store and disposing of Tenants abandoned personal property and trade fixtures.
Tenant shall indemnify Landlord against any loss or liability resulting from
delay by Tenant in so surrendering the leased premises, including without
limitation, any claims made by any succeeding Tenant founded on such delay.

          The voluntary or other surrender of this lease by Tenant, or a mutual
cancellation thereof, shall not work a merger, and shall, at the option of
Landlord, terminate all or any existing subleases or subtenancies, or may, at
the option of Landlord, operate as an assignment to it of any or all such
subleases or subtenacies.

          26.2 If Tenant does not give Landlord sixty (60) days written notice
then Tenant will be obligated to pay rent sixty (60) days from when written
notice is given, unless the space has been leased to a new Tenant. In the event
Landlord leases the space to a new Tenant during the sixty (60) day period, then
Tenant will be released from the Lease obligation as of the date of commencement
of the new Lease.

     27.  MISCELLANEOUS.

          27.1 The words "Landlord" and "Tenant" as used herein shall include
the plural as well as the singular. If there is more than one Tenant, the
obligations under this Lease imposed on Tenant shall be joint and several. The
captions preceding the articles of this Lease have been inserted solely as a
matter of convenience and such captions in no way define or limit the scope or
intent of any provision of this Lease.

          27.2 The terms, covenants and conditions contained in this lease shall
bind and inure to the benefit of Landlord and Tenant and, except as otherwise
provided herein, their respective personal representatives and successor,; and
assigns; provided, however, that upon the sale, assignment or transfer by
Landlord named herein (or by any subsequent landlord) of its interest in the
Building as owner or Tenant, including any transfer by operation of law,
Landlord (or such subsequent landlord) shall be relieved from all subsequent
obligations and liabilities arising under this Lease subsequent to such sale,
assignment or transfer.

          27.3 Any provision of this Lease which shall prove to be invalid,
void, illegal or unenforceable shall in no way affect, impair or invalidate any
other provisions of this Lease, and such provisions and this Lease shall remain
in full force and effect.

          27.4 This Lease shall be construed and enforced in accordance with the
laws of the State of California.

          27.5 This instrument, including the exhibits hereto, which are made a
part of this Lease, contains the entire agreement between the parties and all
prior negotiations and agreements are merged herein. Tenant hereby acknowledges
that neither Landlord nor Landlord's agents have made any representations or
warranties with respect to the Premises, the Building or this Lease except as
expressly set forth herein.

          27.6 In the event of any action or proceeding brought by either party
against the other under this Lease, the prevailing party shall be entitled to
recover all costs and expenses, including its attorneys' fees, in such action or
proceeding in such amount as the court may adjudge reasonable. The prevailing
party shall be determined by the court based upon an assessment of which party's
major arguments made or positions taken in the proceedings could fairly be said
to have prevailed over the other party's major arguments or positions on major
disputed issues in the court's or arbitrator's decision. If Landlord or Tenant,
through no fault of its own, is named as defendant in any suit brought against
Landlord or Tenant in connection with or in any way arising out of this Lease or
Tenant's use of occupancy of the Premises, Landlord or Tenant shall pay
Landlord's or Tenant's costs and expenses, including, without limitation,
reasonable attorneys fees, incurred in such suit or action.

          27.7 If Landlord is unable to fulfill or is delayed in fulfilling any
of Landlord's obligations under this Lease, by reason of acts of God, accidents,
repairs, labor disputes, inability to obtain utilities or materials or by any
other reason beyond Landlord's reasonable control, then no such inability or
delay by Landlord shall constitute an actual or constructive eviction, in whole
or in part, or entitle Tenant to any abatement or diminution of Base Rent or
Additional Charges, or relieve Tenant from any of its obligations under this
Lease, or impose any liability upon Landlord or its agents by reason of
inconvenience, annoyance, interruption, injury or loss to or interference with
Tenant's business or use and occupancy or quiet enjoyment of the Premises or any
loss or damage occasioned thereby.
<PAGE>

                                                       Bayshore Corporate Center

WITNESS WHEREOF, Landlord and Tenant have executed this Lease on the day and
year first written above.

Dated:   7/1/97               Landlord: CORNERSTONE PROPERTIES I,
         --------------       LLC
                              By: /s/ Steve Kaufman
                                 -----------------------------
                              Steve Kaufman

Dated:   6/24/97              Tenant: BOMBARDIER SOFTWARE
         --------------

                              By: /s/ Felix Lin
                                 -----------------------------
<PAGE>

                                                       Bayshore Corporate Center

                                   Exhibit B
                                   ---------

     "Real Estate Taxes" means all taxes, assessments and charges levied upon or
with respect to the Building or any personal property of Landlord used in the
operation thereof, or Landlord's interest in the Building or such personal
property.  Real Estate Taxes shall include, without limitation, all general real
property taxes and general and special assessments, charges, fees, or
assessments for transit, housing, police, fire or other governmental services or
purported benefits to the Building or occupants thereof, service payments in
lieu of taxes, and any tax, fee or excise on the act of entering into this Lease
or any other lease of space in the Building, or on the use or occupancy of the
Building or any part thereof, or on the rent payable under any lease or in
connection with the business of renting space in the Building, that now or
hereafter levied or assessed against Landlord by the United States of America,
the State of California or any political subdivision thereof, public
corporation, district, or any other political or public entity, and shall also
include any other tax, fee  or other excise, however described, that may be
levied or assessed as a substitute for, or as an additional to, in whole or in
part, any other Real Estate Taxes whether or not now customary or in the
contemplation of the parties. Real Estate Taxes shall not include franchise,
transfer, inheritance, or capital stock taxes or income taxes measured by the
net income of Landlord from all sources unless, due to a change in the method of
taxation, any of such taxes is levied or assessed against Landlord as a
substitute for, or as an addition to, in whole or in party, any other tax that
would otherwise constitute a Real Estate Tax. Real Estate Taxes shall also
include reasonable legal fees, costs, and disbursements incurred in connection
with proceedings to contest, determine, or reduce Real Estate Taxes.

     "Building Expenses" means the total cost and expenses paid or incurred by
Landlord in connection with the management, operation, maintenance and repair of
the Buildings, including without limitation: (i) the cost of air conditioning,
electricity, steam, water, heating, mechanical, telephone, utilities (ii) the
cost of repairs, replacements and all labor and material costs related thereto,
and the cost of general maintenance, cleaning and service contracts and the cost
of all supplies, tools and equipment required in connection therewith, (iii)
wages, salaries, payroll taxes and other labor costs and employee benefits, (iv)
management fees, (v) fees, charges and other costs of all independent
contractors engaged by Landlord, (vi) accounting and legal expenses, (vii)
security protection, (viii) depreciation on personal property, including,
without limitation, carpeting in public corridor and common areas and window
coverings provided by Landlord, (ix) the fair market rental value of all offices
in the Building for the property manager and related management and operations
personnel, (x) the cost of any capital improvements made in the building after
completion of its construction as a labor saving or energy saving device or to
effect other economics in the operation or maintenance of the Building, or made
to the Building after the date of this Lease that are required under any
governmental law or regulations that was not applicable to the Building at the
time that permits for the construction thereof were obtained such cost to be
amortized over such reasonable period as Landlord shall determine, together with
interest on the unamortized balance at the rate of ten percent (10%) per annum
or such higher rate as may have been paid by Landlord on funds borrowed for the
purpose of construction such capital improvements, (xi) the cost of contesting
the validity or applicability of any governmental enactments which may affect
operating expenses, (xii) maintenance and repair of the roof of the building and
the structural parts of the Building, (xiii) fees for licenses and permits
required for the operation of the Building and Common Area and (xiv) any other
expenses of any kind whatsoever reasonably incurred in connection with the
management, operation, maintenance and repair of the Building (other than Real
Estate Taxes, Insurance expenses and any services for which Landlord is
separately and directly reimbursed by tenant or other tenants in the Building).
Building Expenses of a variable nature shall be adjusted to reflect ninety-five
(95%) occupancy of the Building during any period in which the Building is not
at least ninety-five (95%) occupied; provided, however, no such adjustment shall
result in an inequitable allocation of Building Expenses to Tenant.

     "Common Area Expenses" means the total cost and expenses paid or incurred
by Landlord in connection with the management, operation and maintenance of the
Common Area (as defined in Section 5.2), including without limitation each of
those items specified under "Building Expenses" to the extent applicable to the
Common Area.

     "Insurance Expenses" shall mean all premiums and costs and expenses for all
policies of insurance which may be obtained by Landlord in its discretion for
(a) the Premises, Building and the Common Areas of the Complex, or any blanket
policies which include the Building or Complex, covering damage thereto and loss
of rents caused by fire and other perils Landlord elects to cover, including,
without limitation, coverage for earthquakes and floods, (b) commercial general
liability insurance for the benefit of Landlord and its designees and (c) such
other coverage required by any lender or which Landlord elects to obtain for the
Premises, Building or Common Areas of the Complex, including, without
limitation, coverage for environmental liability and losses.  Notwithstanding
anything to the contrary, Landlord reserves the right to adjust the Base
Insurance Costs if such Base Insurance costs including coverage's for perils not
required or elected to be insured by Landlord in the future.

                                      16.
<PAGE>

                                                       Bayshore Corporate Center

                             Rules and Regulations
                                   Exhibit C
                                   ---------

1.   No sign, placard, picture, advertisement, name or notice shall be
inscribed, displayed or printed or affixed to any part of the outside or inside
of the Building/Office Complex or the leased premises without the prior written
consent of Landlord and Landlord shall have the right to remove any such sign,
placard, picture, advertisement, name or notice without to and at the expense of
Tenant.

     All approved signs or lettering on doors shall be printed, painted, affixed
or inscribed at the expense of Tenant by a person approved of by Landlord.

     Tenant shall not place anything or allow anything to be placed near the
glass of any window, door, partition or wall WHICH may appear unsightly from
outside the leased premises; provided, however, that the Landlord may furnish
and install a Building standard window covering at all exterior windows.  Tenant
shall not without prior written consent of Landlord cover or otherwise sunscreen
any window.

2.   Landlord shall approve in writing, prior to installation, the method of
attachment of any objects affixed to walls, ceilings or doors.

3.   The bulletin board or directory of the Building/Office Complex will be
provided exclusively for the display of the name and location of Tenant only and
Landlord reserves the right to exclude any other names therefrom.

4.   The sidewalks, halls, passages, exits, entrances, elevators and stairways
shall not be obstructed by Tenant or used by Tenant for any purpose other than
ingress and egress from the leased premises. The halls, passages, exits,
entrances, elevators, stairways, balconies and roof are not for the use of the
general public and the Landlord shall in all cases retain the right to control
and prevent access thereto by all persons whose presence in the judgment of the
Landlord shall be prejudicial to the safety, character, reputation and interests
of the Building/Office Complex and its Tenants, provided that nothing herein
contained shall be construed to prevent SUCH access to persons with whom the
Tenant normally deals in the ordinary course of Tenant's business unless such
persons are engaged in illegal activities. No Tenant and no employees or
invitees of any Tenant shall go upon the roof of the Building/Office Complex.

5.   Locks-No additional locks or bolts of any kind shall be placed upon any of
the doors or windows by Tenant, nor shall any changes be made in existing locks
or the mechanisms thereof without the prior written consent of the Landlord.
Tenant must, upon the termination of Tenant's tenancy, restore to Landlord all
keys of storage, offices and toilet rooms either furnished to or otherwise
procured by Tenant and in the event of the loss of any keys so furnished Tenant
shall pay to Landlord the costs thereof or of changing the lock or locks opened
by lost keys if Landlord deems it necessary to make a change.

6.   The toilet rooms, urinals, wash bowls and other apparatus shall not be used
for any purpose other than that for which they were constructed and no foreign
substance of any kind whatsoever shall be thrown therein and the expense of any
breakage, stoppage or damage resulting from the violation of this rule shall be
borne by the Tenant who, or whose employees or invitees, shall have caused it.

7.   Tenant shall not overload the floor of the leased premises or mark, drive
nails, screw or drill into the partitions, woodwork or plaster or in any deface
the leased premises or any part thereof.  No boring, cutting or stringing of
wires shall be permitted except with the prior written consent of the Landlord
and as the Landlord may direct.

8.   No furniture, freight or equipment of any kind shall be brought into the
Building/Office Complex without the consent of Landlord and all moving of the
same into or out of the Building/Office Complex shall be done at such time and
in such manner as Landlord shall designate. Landlord shall have the right to
prescribe the weight, size and position of all safes and other heavy equipment
brought into the Building/Office Complex and also the times and manner of moving
the same in and out of the Building/Office Complex. Safes or other heavy objects
shall, if considered necessary by Landlord, stand on wood strip of such
thickness as is necessary to properly distribute the weight. Landlord will not
be responsible for loss of or damage to any such safe or property from any cause
and all damage done to the Building/Office Complex by moving or maintaining any
such safe or other property shall be repaired at the expense of Tenant. There
shall not be used in any space, or in the public halls of the Building/Office
Complex, either by any Tenant or others, any hand trucks except those equipped
with rubber tires and side guards.

9.   Janitorial Service-Tenant shall not employ any person or persons for the
purpose of cleaning the leased premises without the consent of Landlord.
Landlord shall be in no way responsible to Tenant for any loss of property from
the leased premises, however occurring, or for any damage done to the effects of
Tenant by the Janitorial Service or any of Landlord's employees, or by any other
person. Janitorial service will not include the cleaning of carpets and rugs,
other than vacuuming. Tenant shall not cause unnecessary labor by reason of
Tenant's carelessness and indifference in the preservation of good order and
cleanliness.

10.  Tenant shall not use, keep or permit to be used any food or noxious gas or
substance in the leased premises, or permit or suffer the leased premises to be
occupied or used in a manner offensive or objectionable to the Landlord or other
occupants of the Building/Office Complex by reason of noise, odors, and/or
vibrations, or interfere in any way with other Tenants or those having business
therein nor shall any animals or birds be brought in or kept in or about the
leased premises or the BOC.  No Tenant shall make or permit to be made any
unseemly or disturbing noises or disturb or interfere with occupants of this or
neighboring Buildings or lease premises or those having business with them
whether by the use of any musical instrument, radio, phonograph, unusual noise,
or in any other way.  No Tenant shall throw anything out of door or down the
passageways.  No trash shall be put in the common areas before 5:00 p.m.

11.  The leased premises shall not be used for manufacturing or for the storage
of merchandise except as such storage may be incidental to the use of the leased
premises for general office purposes.  No Tenant shall occupy or permit any
portion of his leased premises for anything other than general office purposes.
No Tenant shall occupy or permit any portion of his leased premises to be
occupied as an office for the manufacture or sale of liquor, narcotics, or
tobacco in any form, or as a medical office, or as a barber shop or manicure
shop.  The leased premises shall not be used for lodging or sleeping or for any
illegal purposes.

12.  Tenant shall not use or keep in the leased premises or the Building/Office
Complex any kerosene, gasoline, or inflammable or combustible fluid or material.

13.  Landlord will direct electricians as to where and how telephone and
telegraph wires are to be introduced.  No boring or cutting for wires will be
allowed without the consent of Landlord.  The location of telephones, call boxes
and other office equipment affixed to the leased premises shall be subject to
the approval of the Landlord.

                                      17.
<PAGE>

                                                       Bayshore Corporate Center

14.  Installation of Floor Coverings-No Tenant shall lay linoleum or other
similar floor covering so that the same shall be affixed to the floor of the
leased premises in any manner except by a paste, or other material, which may
easily be removed with water, the use of cement or other similar adhesive
materials being expressly prohibited. The method of affixing any such linoleum
or other similar floor covering to the floor, as well as the method of affixing
carpets or rugs to the lease premises, shall be subject to approval by Landlord.
The expense of repairs any damage resulting from a violation of this rule shall
be borne by Tenant by whom, or by whose agents, employees, or visitors, the
damage shall have been caused.

15.  Carpet/Floor Protection-Tenant shall provide and use chair paid and carpet
protectors at all desk and furniture locations.

16.  No furniture, packaging supplies, equipment or merchandise will be received
in the Building/Office Complex or carried up or down in the elevators except
between such hours and in such elevators as shall be designated by Landlord.

17.  On Saturdays, Sundays and legal holidays and on other days between the
hours of 7:00 p.m. and 7:00 a.m. the following day, access to the
Building/Office Complex, or the halls, corridors, elevators or stairways in the
Building/Office Complex, or to the leased premises may be refused unless the
person seeking access is known to the person or employee of the Building/Office
Complex in charge and has a pass or is properly identified. The Landlord shall
in no case be liable for any error with regard to the admission to or exclusion
from the Building/Office Complex of any person. In case of invasion, mob, riot,
public excitement, or other commotion, the Landlord reserves the right to
prevent access to the Building/Office Complex during the continuance of the same
by closing the doors or otherwise, for the safety of the Tenants and protection
of property in the Building/Office Complex. The Landlord reserves the right to
close and keep locked all entrance and exit doors of the Building/Office Complex
on Saturdays, Sundays and legal holidays and other days between the hours of
7:00 p.m. and 7:00 a.m., and during such further hours as Landlord may deem
advisable for the adequate protection of said Building/Office Complex and the
property of its Tenants.

18.  All entrance doors in the leased premises shall be left locked when the
leased premises are not in use, and all doors opening to public corridors shall
be kept closed except for normal ingress and egress from the leased premises.

19.  Landlord reserves the right to exclude or expel from the Building/Office
Complex any person who, in the judgment of Landlord, is intoxicated or under the
influence of liquor or drugs, or who shall in any manner do any act in violation
of any of the rules and regulations of the Building/Office Complex.

20.  Employees of Landlord shall not perform any work or do anything outside of
their regular duties unless under special instructions from the Landlord, and no
employee will admit any person (Tenant or otherwise) to any office without
specific instruction from the Landlord.

21.  No vending machine or machines of any description shall be installed,
maintained or operated upon the lease premises without the prior written consent
of the Landlord.

22.  Landlord shall have the right, exercisable without notice and without
liability to Tenant, to change the name and the street address of the
Building/Office Complex of which the leased premises are a part.

23.  Tenant agrees that it shall comply with all fire and security regulations
that may be issued from time to time by Landlord and Tenant also shall provide
Landlord with the name of a designated responsible employee to represent Tenant
in all matters pertaining to such fire or security regulations.

24.  Landlord reserves the right by written notice to Tenant to rescind, alter
or waive any rule or regulation at any time prescribed for the Building/Office
Complex and its Tenants.

25.  Tenant shall not disturb, solicit or canvass any occupant of the
Building/Office Complex and shall cooperate to prevent the same.

26.  Without the prior written consent of Landlord, Tenant shall not use the
name of the Building/Office Complex in connection with or in promoting or
advertising the business of the Tenant except as Tenants address.

27.  Landlord shall furnish reasonable amounts of heating and air conditioning
during the hours of 7:00 a.m. to 5:00 p.m., Monday through Friday. In the event
Tenant requires heating and air conditioning during off hours, Saturdays,
Sundays or holidays, there will be a $25.00 per hour charge. Tenants off hours
usage will be billed monthly. Landlord and Tenant shall mutually agree upon an
estimated usage prior to Lease commencement. Tenant will be billed monthly on
this estimated amount and any changes will be adjusted on the end of the year.

28.  Energy Conservation Measures-Tenant shall abide by all energy conservation
measures employed by Landlord, including but not limited to requirements that
lights be extinguished upon leaving the leased premises and that draperies by
closed at times specified by Landlord. Tenant shall not use any method of
heating or air conditioning other than that supplied by Landlord.

29.  Equipment Defects-Tenant shall give Landlord prompt notice of any accidents
to or defects in the water pipes, gas pipes, electric lights and fixtures,
heating apparatus, or any other service equipment.

30.  Parking-Vehicles are to park in property marked spaces only.  Under no
circumstances are vehicles to (a) back in, (b) park in space reserved for other
Tenants, (c) park in driveways, (d) park in front of entrances the
Building/Office Complex, (e) park in unmarked areas, (f) park in loading zones,
(g) park in two or more spaces, (h) park for over 48 hours without registering
the vehicle, in writing, with the Landlord or (i) park in areas reserved the
handicapped. Landlord shall have the right to cause improperly parked cars to be
towed at the owners expense.

                                      18.
<PAGE>

                                                       Bayshore Corporate Center

                                Phone Agreement
                                   Exhibit D
                                   ---------

Tenant's phone service will be provided through Bayshore Corporate Center as a
condition of the Lease under the below General Terms and Conditions.  The
attached cost sheet details basic monthly charges and installation costs.

The attached Letter of Agency is to be signed, attached to Tenant's letterhead
and returned with this lease.

GENERAL TERMS AND CONDITIONS

A.   SUBSCRIBER RESPONSIBILITY: Subscriber assumes responsibility for all usage
of the service, for all fees, charges, and taxes thereof, and for all the use
and security of subscriber's services rendered prior to notification of misuse
of authorization codes.

B.   PAYMENT TERMS: Subscriber agrees to remit payment for all services
provided, including taxes as applicable, upon receipt of invoice. Bayshore
Corporate Center reserves the right to interrupt service to subscriber for late
payments of fees, charges, and taxes. Should subscriber fail to pay its bills in
a timely manner as required by this agreement, Bayshore Corporate Center has the
right to terminate subscriber's use of their service on two (2) days written
notice. Subscriber also agrees to reimburse Bayshore Corporate Center for all
reasonable expenses including reasonable attorneys' fees for expenses to
Bayshore Corporate Center in the collection of past due balances.

C.   MISCELLANEOUS:

          1.   In no event shall Bayshore Corporate Center be liable for any
special, consequential, punitive or incidental damages, including loss of use,
profit, revenue or goodwill. Bayshore Corporation Center shall not be liable for
any failure of performance due to causes and/or circumstances beyond its
control, nor shall Bayshore Corporate Center be liable for any act or omission
for any other company furnishing any portion of service to subscriber, any
equipment supplied to subscriber (i.e. T1.5 channel banks, etc.) by Bayshore
Corporate Center or any other supplier of equipment to subscriber (under
warranty, service agreement, or otherwise), or any network service contracted by
subscriber or Bayshore Corporate Center. Subscriber acknowledges and understand
that the applicable AT&T/Netsuke tariff rates are subject to change.

          2.   This writing is intended by the parties as a final expression of
their agreement and as a complete and exclusive statement for the terms thereof.
The parties shall not be bound by any agent's or employee's representation,
promise, or inducement not set forth in this agreement.

          3.   Except as set forth in clause 2, this agreement shall remain in
effect until revoked in writing on ten (10) days notice.

          4.   This agreement is not effective until it is approved and signed
by Bayshore Corporate Center and shall be governed and controlled by the laws of
the State of California.

          5.   Should any provision of this agreement be found to be void or
unenforceable, it shall not affect the viability or enforceability of the other
provisions.

          6.   This agreement shall be binding on, and, inure to the benefits of
the parties successors, assigns, heirs and beneficiaries.

          7.   If Subscriber leases telephones, the Subscriber will be
responsible for any physical damage or loss of telephones. At the end of five
(5) years, the Subscriber may purchase the phones from Bayshore Corporate
Center/ALD Communications, Inc. at fair market value.

          8.   The AT&T and NetSave per minute rates presented on the costs
analysis will not be increased prior to April 1, 1996.

          9.   There are no ongoing service or maintenance fees associated with
this service.

     Name: Felix Lin   Date: 6/24/99  Signature:  /s/ Felix Lin
          -----------       --------             ---------------

                                      19.
<PAGE>

                                                       Bayshore Corporate Center


                     1650 So. Amphlett Blvd., Suite # 114
                             San Mateo, Ca. 94402

                               LETTER OF AGENCY

This is to advise you that we have retained AT&T and ALD Communications, Inc.
(ALD) to act as our communications Agents.

Through this Agency Agreement we grant ALD and AT&T the privilege of obtaining
duplicate copies of current and past telephone bills, copies of orders for all
network services and to coordinate the connection of services. This includes
arranging for disconnection's or rearrangements of service as appropriate. All
recurring and non-recurring charges made by the Local Exchange Carrier Pacific
                                                                       -------
Bell in providing the services, for service orders on our behalf, are to be paid
----
by us directly and are not the responsibility of ALD or AT&T.

This does not preclude our ability to act on our behalf when we deem it
necessary.

This Letter of Agency has been placed directly on our company letterhead in my
presence.

/s/ [ILLEGIBLE]^^
-----------------------------------------------------------------------
Authorized signature

     CEO                                             6/24/97
--------------------------------------           ----------------------
Title                                            Date

                                      20.