4800 HD (250-3539)     Serial Mouse/Trackball Usage      Faxback Doc. #2488

When both the Mini Trackball (25-3545) and a serial mouse are installed in
the 4800 HD, the MS-DOS mouse driver defaults to the mini trackball. The
system never recognizes the serial mouse. To make the mouse driver recognize
the serial mouse, it will be necessary issue one of the following commands:

   C:\DOS\MOUSE.COM /1                From the Dos prompt or AUTOEXEC.BAT

   DEVICE=C:\DOS\MOUSE.SYS /1         From the CONFIG.SYS

This will make the mouse driver look at the serial mouse on COM1 instead of
the built in trackball. However, to utilize the mouse in a Windows
environment, you will have to change drivers through the Windows Setup.
Otherwise, the mini trackball will operate, because the trackball uses the
Microsoft or IBM PS/2 driver.

To be able to use the serial mouse in Windows, just change to the Mouse
Systems Serial or Bus Mouse driver in Windows Setup. If not, what you get
is mini trackball usage in Windows, and serial mouse functionality in a DOS
environment.

(rjs-06/21/93)