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                                                                  Exhibit 10.5


May 13, 1996



Mr. Michael Laven
2234 Vallejo Street
San Francisco, CA  94123

Dear Michael:

I am very pleased to offer you the position of Vice President, Worldwide Field
Operations at Infinity. In this position, your primary responsibility will be
management of Infinity's world-wide sales and support activities.

Below please find the terms of Infinity's offer:

Status: Full-time exempt, reporting directly to Roger Lang, Chief Executive
Officer

Title: Vice president, Worldwide Field Operations

RESPONSIBILITIES: In the capacity of Vice President, Worldwide Field Operations
you will have the following initial responsibilities:

      -    structuring a sales and support commission plan

      -    managing all field operations, including sales, support and
           consulting

      -    developing a sales and support training plan

      -    working with the CEO and Director of Marketing to develop overall
           business plan

      -    upholding Infinity's reputation for integrity as an officer of the
           company

SALARY AND BONUS: You shall receive a base salary of $12,500 per month ($150,00
per annum). You will further receive a Guaranteed Bonus of $7,500 per quarter
payable in arrears. In addition you will be eligible for an Annual Incentive
Bonus of $120,000 based on Infinity's achievement of it's annual financial
goals. For FY1996 you will receive a bonus payable under Infinity's 1996
Executive Incentive Plan based on Infinity's performance as to revenue and
pre-tax profit margins relative to its existing financial annual plan. Your
target and maximum bonus for 1996 under that plan will be $120,000. If Infinity
achieves but does not exceed its annual financial plan in 1996 as to pre-tax
profit margin and revenue, you would receive 70% of your target bonus or a bonus
or $84,000. For FY 1997 and all subsequent years the Annual Incentive Bonus plan
will be determined in advance by the CEO. The Annual Incentive Bonus will be
paid at such times determined by the Infinity Board of Directors for each of the
participating members of Infinity's management.

OTHER BENEFITS: As a full-time employee, you will be eligible for all benefits
as described in the Infinity Employee Benefits Summary. Please feel free to
contact Susan Coleman at 415/940-6107 if you have further questions about any of
these benefits.
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Mr. Michael Laven
May 13, 1996
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VACATION: Infinity offers 15 days per annum of years one through five of
employment and 20 days per annum for years six and beyond. Further information
and a complete list of observed US holidays can be found in the Employee
Handbook.

EQUITY: A stock option grant of 120,000 shares has been approved by the Infinity
Board at an exercise price of $8.00 per share. These options will vest in
accordance with Infinity's standard vesting policy whereby 25% of the options
become exercisable after one (1) year of employment and the balance of the
option shares vest in equal monthly installments over the next three (3) years
so that the option is fully exercisable after four (4) years from the date of
grant. If Infinity is acquired within two (2) years of the date of original
option grant, the vesting on your options (both ISO and non-qualified) will be
accelerated so that the options will be exercisable as to 50% of the underlying
shares at the closing of such acquisition. Based on Internal Revenue Code
limitations, this grant will be an incentive stock option as to 50,000 of the
shares subject to this option (12,500 of the shares that vest each year) and a
non-qualified stock option for the balance of the shares subject to this option.
Please contact Susan Coleman at 415/940-6107 for further details about the stock
option program and vesting provisions.

In accepting this offer letter by signature below, you also confirm that you are
not subject to any agreement with your present or former employers (e.g.
non-compete agreements) that would prohibit your acceptance of this offer or
your performance of any of the responsibilities defined in this offer or
contemplated in the future during your employment with Infinity.

SEVERANCE: Employment with Infinity is at-will and may be terminated by either
party at any time, with or without cause. This offer letter is not a contract,
and the above outlined terms may be reviewed and modified by Infinity at any
time. This offer will remain valid until May 14, 1996. As evidence of your
acceptance, please sign below and return this letter to Susan Coleman in Human
Resources. The enclosed copy is for your records.

We are anxious to have you as a full-time member of the Infinity team, and are
eager to receive a positive response as soon as possible.

Best regards,




Susan Coleman
Human Resources, Manager

Enclosures
   -  as above


Agreed and Accepted:                                         Date:
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Anticipated Start Date:
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