    AST RESEARCH, INC.         TECHNICAL BULLETIN #0743                  01-24-92

                    AST PREMIUM EXEC 386 AND HEALTHDYNE SOFTWARE

    PROBLEM:       When the Healthdyne database software accesses the math co-
                   processor in a Premium Exec 386/SX-20 the following error
                   message "Stack Frame Error" displays and then returns to a dos
                   prompt.

    AFFECTED
    SYSTEMS:       Premium Exec 386/SX-20 and Premium Exec 386SX-25

    CAUSE:         The software when started with a batch file "GO 1" mis-
                   identifies the L.C.D. screen and the environment created is
                   incorrect.  The correct environment is created by the software
                   if the screen is identified as color CGA, EGA, or VGA display.

    SOLUTION:      Revision "B" of the software has been released by Healthdyne
                   that detects the display attached thereby correcting the above
                   problem.  A temporary solution is to start the program with
                   the "GO 2" batch file, which identifies the screen as a VGA
                   display.