    AST RESEARCH, INC.         TECHNICAL BULLETIN #1310               9-7-95

        QEMM STEALTH FEATURE DOES NOT WORK ON THE ASCENTIA 800N NOTEBOOK

    PROBLEM:      When booting using the stealth feature of Quarterdeck's
                  QEMM program, the system will generate a  Bad or missing
                  Command Interpreter message, and the notebook will no
                  longer boot.

    CAUSE:        A conflict exists between QEMM386.SYS and the system BIOS
                  at the range between FC00-FFFF.  The conflict will
                  overwrite a portion of the BIOS.

    SYSTEMS AFFECTED:
                  Ascentia 800N Notebook

                  AST PART NUMBER    DESCRIPTION
                  501469-XXX         ASC800N 4/33 CS9
                  501471-XXX         ASC800N 4/50 CS9

    SOLUTION:     To prevent QEMM from using this memory range, exclude the
                  upper memory region between FC00-FFFF.  In the CONFIG.SYS,
                  the QEMM386.SYS line should contain an X=FC00-FFFF
                  parameter.