Ignore accidental input

[Børge Holen <borge@arivene.net>]

Hi.
In osX we got the opportunity to turn on the "Ignore accidental input".
Is there a similar option in linux. The random input from the pad itself can 
be pretty annoying. I dunno if its hw or a sw bug, but sometimes the 
trackpad ... like right now.!.  I cannot move the cursor more than an inch 
back / forth. and it shakes heavily. This was not the case this morning, but 
I suspect that the movement startet soon after I left and kept X from 
suspending. I seem never to use it, but I also saw no option, neither a 
userspace program or in the kernel to turn it off.

Børge