Lenovo ThinkPad 390X User's Reference: ThinkPad 390X - Page 130

Reinstall the Standard PS/2 Port Mouse driver; then reinstall the PS/2 TrackPoint

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Troubleshooting Charts Problem The mouse buttons do not work. The scrolling or Magnifying Glass function does not work. A number appears when you type a letter. All or some keys on the external numeric keypad do not work. All or some keys on the external keyboard do not work. Action Reinstall the Standard PS/2 Port Mouse driver; then reinstall the PS/2 TrackPoint driver. See the online user's guide for instructions on how to install the driver. See the General tab page in "Mouse Properties", and make sure that the PS/2 TrackPoint driver is loaded. The numeric lock function is on. To disable it, press and hold Shift; then press NumLk. Make sure that the external numeric keypad is correctly connected to the computer. To use an external keyboard, you can attach it to the computer either directly or through the keyboard/mouse cable. Make sure that: The keyboard cable is correctly connected to the computer (if the keyboard is connected directly to the computer). The keyboard/mouse cable is correctly connected to the computer. The keyboard cable is connected to the correct side of the keyboard/mouse cable. If these items are correct, disconnect the keyboard/mouse cable from the computer and make sure that the operation of the system keyboard is correct. If the system keyboard works, have the keyboard/mouse cable or the external keyboard serviced. 114 ThinkPad 390X User's Reference

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Troubleshooting Charts
Problem
Action
The mouse buttons do
not work.
Reinstall the Standard PS/2 Port Mouse driver; then reinstall the PS/2 TrackPoint
driver. See the online user's guide for instructions on how to install the driver.
The scrolling or Magni-
fying Glass function
does not work.
See the General tab page in "Mouse Properties", and make sure that the PS/2
TrackPoint driver is loaded.
A number appears when
you type a letter.
The numeric lock function is on. To disable it, press and hold
Shift
; then press
NumLk
.
All or some keys on the
external numeric keypad
do not work.
Make sure that the external numeric keypad is correctly connected to the com-
puter.
All or some keys on the
external keyboard do
not work.
To use an external keyboard, you can attach it to the computer either directly or
through the keyboard/mouse cable. Make sure that:
±
The keyboard cable is correctly connected to the computer (if the keyboard is
connected directly to the computer).
±
The keyboard/mouse cable is correctly connected to the computer.
±
The keyboard cable is connected to the correct side of the keyboard/mouse
cable.
If these items are correct, disconnect the keyboard/mouse cable from the com-
puter and make sure that the operation of the system keyboard is correct.
If the
system keyboard works, have the keyboard/mouse cable or the external keyboard
serviced.
114
ThinkPad 390X User's Reference