    AST RESEARCH, INC.         TECHNICAL BULLETIN #0742                  01-24-92

                    MICROSOFT WINDOWS 3.0 AND ENHANCED VGA MODES

    PROBLEM:       When running the application WordPerfect 5.1 in 132x43 column
                   text mode under Windows 3.0 (Real, Standard, or Enhanced
                   modes) and switching between tasks using the  +  key
                   sequence, or using the Task List, when the user switches away
                   from and then back to the WordPerfect session the screen is
                   blank with only a flashing cursor on the screen.

    CAUSE:         Microsoft has advised AST that Windows does not support DOS
                   applications (WordPerfect and others) running in extended
                   graphics modes such as 132x43 column text mode or 640x400x256
                   graphics mode.  Windows will only support standard VGA text
                   and graphics modes for these applications.

    SOLUTION:      Run DOS applications in standard VGA modes only.