    AST RESEARCH, INC.         TECHNICAL BULLETIN #0731                  01-06-92

                         AST 486 SYSTEMS AND MICROSOFT EXCEL

    PROBLEM:       When running Microsoft Excel version 3.0 with a Postscript
                   printer and doing a "Print Preview" in landscape mode with the
                   print expanded 150%, the software will generate the following
                   error message:

                   "NON-RECOVERABLE APPLICATION ERROR"

    SYMPTOM:       All AST 486 based systems experience "NON-RECOVERABLE
                   APPLICATION ERRORS" (UAE).  A system reset is required to
                   recover from this problem.  The UAE's will not occur while
                   printing, only when doing a print preview.

    AFFECTED
    SYSTEMS:       All AST 486 models.

    SOLUTION:      This is not a problem that AST can resolve.  Microsoft Windows
                   version 3.1 (BETA) has been tested by AST and does not
                   experience the same problem.  Customers experiencing the above
                   problem should contact Microsoft Product Support at (206) 637-
                   7098 for a resolution.