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                                                                    EXHIBIT 10.6

                             COAST BUSINESS CREDIT,
                      a Division of Southern Pacific Bank
                      12121 Wilshire Boulevard, Suite 1400
                         Los Angeles, California 90025

                                  Dated as of
                                October 1, 1999

MAI SYSTEMS CORPORATION
9601 Jeronimo Road
Irvine, California 92618
Attn: W. Brian Kretzmer, CEO and CFO

HOTEL INFORMATION SYSTEMS, INC.
9601 Jeronimo Road
Irvine, California 92618
Attn: W. Brian Kretzmer, CEO and CFO

          Re: Events of Default and Limited Forbearance

Dear Mr. Kretzmer

     Reference is hereby made to that certain Loan and Security Agreement, dated
as of April 23, 1998, by and between MAI Systems Corporation, a Delaware
corporation, and Hotel Information Systems, Inc., a Delaware corporation
(jointly and severally the "Borrowers") and Coast Business Credit ("Coast"),
(the "Agreement"). Initially capitalized terms used in this letter agreement
which are not otherwise defined shall have the meanings assigned to such terms
in the Agreement.

     This letter is to acknowledge that Events of Default have occurred under
the Section 8.1 of the Schedule to the Agreement due to Borrowers failure to:
(i) achieve the minimum monthly profit required for the months of July through
October, 1999; (ii) achieve the minimum quarterly profit required for the
quarter ended September 30, 1999; (iii) maintain the Debt Service Coverage
ratio required for the quarter ended September 30, 1999; (iv) maintain the
minimum Consolidated Net Worth required at September 30, 1999 and October 31,
1999; and (v) pay all sales taxes as they become due.

     Coast is willing to forbear from exercising its rights and remedies based
upon the occurrence of the foregoing Events of Default from the date hereof
through and including December 15, 1999, provided that; (a) the Obligations bear
interest at the rate applicable upon the occurrence of an Event of Default
pursuant to Section 10.2 of the Agreement and 3.1 of the Schedule to the
Agreement; (b) commencing October 8, 1999, Borrowers make weekly payments with
respect to the Bridge Loan such that it amortizes at the rate of $25,000 per
week; and (c) Borrowers pay to Coast a monthly fee equal to $10,000 on October
1, 1999, and on November 1, 1999, and continuing thereafter on the first of each
month that any portion of the Bridge Loan remains unpaid.
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Mr. Brian Kretzmer
October 1, 1999
Page 2



     As stated above, as a result of the forgoing Events of Default and pursuant
to Section 10.2 of the Agreement and Section 3.1 of the Schedule to the
Agreement, the interest rate payable by Borrowers under Section 3.1 of the
Agreement has been increased and the Obligations now bear interest at the
default rate which is equal to the Interest Rate stated in the Agreement plus
3.0% per annum, calculated on the basis of a 360-day year for the actual number
of days elapsed (the "Default Rate"). This Default Rate will remain in effect
until all Events of Defaults have been cured.

     In addition, Coast agrees that notwithstanding any provisions of the
Agreement to the contrary, MAI Systems Corporation may grant a junior lien in
favor of the holders of MAI's existing subordinated debt, as contemplated by
and subject to the execution of that certain Acknowledgement and Consent to be
executed by Coast and such subordinated debt holders.

     This letter agreement is limited precisely as written and shall not be
deemed to (a) be a waiver or modification of any other term or condition of the
Agreement or any other loan document, (b) prejudice any right or remedy which
Coast may now have or may have in the future under or in connection with the
Agreement or any loan document, or (c) extend the forbearance described above
beyond December 15, 1999. In the event that any of the foregoing Events of
Default have not been cured on or before such date, Coast reserves the right to
enforce any and all rights and remedies it may have under the Agreement based
upon such Events of Default. Furthermore, Coast reserves the right to establish
at any time any reserve which Coast deems necessary in its sole discretion.

     Please acknowledge your receipt of this letter agreement and acceptance of
the foregoing terms and conditions by signing and dating the enclosed
counterpart of this letter agreement where indicated below and returning same
to the undersigned immediately.


                                   COAST BUSINESS CREDIT,
                                   a Division of Southern Pacific Bank



                                   By:  /s/ [Signature Illegible]
                                      ---------------------------

                                   Title:  Vice President
                                         ------------------------
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Mr. Brian Kretzmer
October 1, 1999
Page 3



Acknowledged and Agreed to as of
October 1, 1999



MAI SYSTEMS CORPORATION,
a Delaware corporation


By:   /s/ WILLIAM BRIAN KRETZMER
      --------------------------
Name:     WILLIAM BRIAN KRETZMER
      --------------------------
Title:    CEO/CFO
      --------------------------


HOTEL INFORMATION SYSTEMS, INC.,
a Delaware corporation


By:   /s/ WILLIAM BRIAN KRETZMER
      --------------------------
Name:     WILLIAM BRIAN KRETZMER
      --------------------------
Title:    CEO/CFO
      --------------------------