Epson 486SX - Manual (Page 178)

Software Problems
If you are having trouble with an application program, try the
following solutions:
1. If the application program does not start, check that you are
following the correct procedure for starting the program,
and that it is installed correctly. If you have a hard disk and
the program is stored in a directory on that drive, make
sure you are logged onto or specifying the correct directory.
If you don’t have a hard disk, make sure you inserted the
correct diskette in drive A.
2. Your computer can run at either high speed or low speed.
While almost all programs work properly at the faster
speed, some must run at the slower speed. Check your
software manual to see if this is the case, and change the
processor speed if necessary. See “Changing the Processor
Speed” in Chapter 4 for instructions and information on
using copy-protected programs.
3. If you entered an MS-DOS command that you want to stop,
there are special key combinations you can type to cancel
the command. These methods may also work in your
application programs:
Hold down the key and press
Hold down the key and press
4. An application program can occasionally lock the computer,
making it unresponsive to keyboard commands. If your
computer does not respond when you type on the
keyboard, you can reset it. Follow the instructions in
Chapter 3.
Troubleshooting B-23