Trackpoint Problems - IBM ThinkPad X40 Series Service And Troubleshooting Manual

Solving computer problems
Solution:
Make sure that the external numeric keypad is correctly connected to the
computer.
Problem:
All or some keys on the external PS/2 keyboard do not work.
Solution:
If you are using the X4 UltraBase
to the keyboard/mouse connector on the X4 UltraBase Dock. If you use a
mouse and an external keyboard simultaneously, you need the
keyboard/mouse connector. Make sure that keyboard/mouse connector is
correctly connected to the mouse connector of the X4 UltraBase Dock, and
that the keyboard cable is correctly connected to the keyboard connector of
the keyboard/mouse connector.
If the connection is correct, disconnect the cable and make sure that the
built-in keyboard operates properly. If the built-in keyboard works, there is
a problem with the external keyboard. Try using a different external
keyboard.

TrackPoint problems

Problem:
The pointer drifts when the computer is turned on or after it resumes
normal operation.
Solution:
The pointer might drift when you are not using the TrackPoint during
normal operation. This is a normal characteristic of the TrackPoint and is
not a defect. The pointer drifts for several seconds under the following
conditions:
v When the computer is turned on.
v When the computer resumes normal operation.
v When the TrackPoint is pressed for a long time.
v When the temperature changes.
Problem:
The mouse or the pointing device does not work.
Solution:
Make sure that the TrackPoint is set to Automatic in the ThinkPad
Configuration Program. Then detach the mouse or the pointing device,
and try using the TrackPoint. If the TrackPoint works, the error might be
due to the mouse or the pointing device.
Make sure that the cable for the mouse or the pointing device is securely
connected to the X4 UltraBase Dock.
If your mouse is incompatible with the IBM PS/2 mouse, disable the
TrackPoint, using the ThinkPad Configuration Program.
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ThinkPad X40 Series Service and Troubleshooting Guide
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Dock, connect the keyboard connector