Epson 386/25 - Manual (Page 276)

If you have included the file MOUSE.SYS in your
CONFIG.SYS file, repeat step 5 to modify the .SYS file as well.
Just substitute .SYS for .COM in the instructions.
When you are going to use the program with which you had the
mouse problem, you need to load the new mouse driver into the
computer’s memory. There are two ways to do this:
❏ Type the name of the new mouse driver at the MS-DOS
command prompt and then start the program.
❏ Modify your AUTOEXECBAT file (or another batch file)
to include the name of the new mouse driver. See your
MS-DOS Reference Manual for instructions.
Note
If you have already loaded the original mouse driver, reset the
computer before you load the new one.
Memory Module Problems
If you added extra memory to your system by installing SIMMs
and that memory is not operating properly, check the following:
1. Check to make sure that you set the memory configuration
jumpers correctly and that they match your current SIMM
configuration. See Chapter 5 for instructions on setting
jumpers JP4 through JP8.
2. If the jumpers are set correctly but the memory count
displayed by the power-on diagnostics program is incorrect,
you or your dealer may not have installed the SIMMs
correctly. They may be installed in the wrong sockets, they
may be the wrong type of SIMM, or they may not be
inserted all the way into their sockets. (Keep in mind that
the memory count does not include the 384KB of memory
between 640KB and 1MB.)
D-28 Troubleshooting