Technical data

Troubleshooting, Continued
Mouse/Tablet
Problems
Table C–3 Mouse/Tablet Problems
Symptom Possible Cause Corrective Action
System boots
but mouse or
optional tablet
pointer does
not appear on
the screen, or
monitor does
not respond to
pointing device
commands.
Pointing device
cable is installed
incorrectly or is
loose.
Turn off the system.
Disconnect then reconnect
the cable to rest the
device. Turn on the
system.
The system
is halted; no
pointer appears
on the screen.
Reboot the system.
Pointing device
is faulty.
Replace the pointing
device.
Keyboard
Problems
Table C–4 Keyboard Problems
Symptom Possible Cause Corrective Action
Keys do not
work.
Hold Screen key
is active. Hold
screen light is
on.
Press the Hold Screen key
to release hold on screen.
Keyboard cable
is loose or not
connected.
Ensure that the keyboard
cable is securely connected
at both ends.
Continued on next page
C–8