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Exhibit 10.9

February 13, 2003
Mr. Darl McBride
President & CEO
Caldera, dba The SCO Group
355 South 520 West
Lindon, Utah 84042

Dear Darl:

        This letter shall serve as the first amendment and clarification to our
engagement letter dated August 16, 2002 (the "Engagement Letter").

        First, I would like to memorialize your and your management team's
satisfaction with Morgan Keegan's services to date. The SCO engagement has taken
a number of unexpected twists and turns that have required assistance that goes
beyond conventional investment banking services. I understand that you are
pleased with Morgan Keegan's assistance and contributions in addressing SCO's
atypical needs. It has been, and remains, Morgan Keegan's objective to work
diligently with management to build shareholder value at SCO. I also understand
that it is our collective intent that Morgan Keegan will continue to work with
SCO in the broad range of capacities that Morgan Keegan has served the Company
to date.

        Accordingly, the Engagement Letter between SCO and Morgan Keegan is
amended and clarified as follows:

1.SCO and Morgan Keegan mutually agree to extend the date of the Engagement
Letter to August 16, 2003. Further, SCO requires that Kim Jenkins continue to
serve as the primary banker in connection with the SCO engagement.

2.SCO and Morgan Keegan agree that, in the event Sun Microsystems and/or
Microsoft enters into a substantial SCOsource licensing arrangement with SCO
during the term of the engagement, that such an event would fall under provision
1(b) of our Engagement Letter. As such, the aggregate amounts paid under the
license agreements would be subject to the Contingent Placement Fee, calculated
as six (6) percent for a license with Sun and one (1) percent for a license with
Microsoft.

3.SCO and Morgan Keegan reaffirm the merger and acquisition provisions of the
Engagement Letter and agree to the applicability of provision 1(c) regarding the
payment of a Transaction Fee equal to 2% in the event of a sale or acquisition
of SCO to a large strategic company.

        Except as otherwise provided above, the Engagement Letter remains
unamended in full force and effect.

 
 
Very truly yours,
 
 
MORGAN KEEGAN & CO., INC.
 
 
By:
 
/s/  KIMBLE L. JENKINS      

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    Name:   Kimble L. Jenkins

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    Title:   Managing Director

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Agreed and Accepted:

CALDERA, INC., dba The SCO Group

By:
 
/s/  DARL C. MCBRIDE      

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  Name:   Darl C. McBride

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    Title:   Chief Executive Officer

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Exhibit 10.9