10.2 Genius Mouse If you are using a Genius mouse and are running non-Windows applications in 386 enhanced mode, the mouse may not work properly, especially if you have several non-Windows applications running at the same time. To correct this problem, add the following line to the [386Enh] section of your SYSTEM.INI file: local=PC$MOUSE For more information about changing settings in the SYSTEM.INI file, see the SYSINI.WRI online document. .