Epson 500 Series - Manual (Page 85)

Trackball or Pointing Device Problems
If your trackball or other PS/2-compatible pointing device doesn't
work properly, try these solutions:
1. Is the trackball or pointing device connected properly? Make
sure you connected it to the MOUSE port before turning on the
computer, as described in Chapter 4.
2. Did you install any necessary drivers and load them into your
computer's memory? See the documentation that came with
your device for instructions.
3 If you are still having trouble, check the documentation that
came with the device for troubleshooting information or
contact the manufacturer for assistance.
External Keyboard Problems
1. Make sure the external keyboard is firmly connected to the KB
port, as descirbed in Chapter 4.
2. Check whether the LEDs on the keyboard light up when you
turn on the computer.
3. If you think there is something wrong with the keyboard,
consult the dealer from whom you purchased it, or call the
EPSON Connection for assistance.
Troubleshooting A-13