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Paper Tape
Posts: 1
Registered: ‎09-24-2008
Location: Costa Mesa, Ca (So CA)
Views: 670
Message 1 of 2

erratic keyboard behavior on T42 laptop

How do I fix this problem on Thinkpad T42 (23734TU)..

I assume it has something to do with the pressure from hands resting on the laptop while typing.

Symptom: the cursor moves to a different location on the screen while typing.  Experienced by fast typers.

Problem goes away if eraser head mouse gets turned off (which isn't any fun, not having that mouse functioning).

I thought there was a softare or BIOS fix.



Retired SuperMod
Retired SuperMod
Posts: 9,293
Registered: ‎11-27-2007
Location: SK
Views: 669
Message 2 of 2

Re: erratic keyboard behavior on T42 laptop

Joanne, welcome to the forum,


not an uncommon problem experienced by fast typers. Usually the TouchPad is responsible and adjusting the sensitivity or turning off the "tap" function usually solves this.

If you are sure that the TrackPoint, "eraser head mouse", is causing the problem you might consider swapping the TrackPoint caps. Most ThinkPads have the flat "Top-Hat" cap attached from the factory, change this to the smaller Classic "hairy" cap as it presents a smaller target as peoples fingers wizz across the keyboard.


You may want to also try the latest drivers found here.


Hope this helps



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