It's not directly relevant to this article, but you can stop the beeping of a Thinkpad keyboard by disabling this driver.

See:

http://forum.notebookreview.com/showthread.php?t=155201

Quite a fun an informative article. I've not plugged in a pc-speaker component into my builds the last 6 or so years, I'd gotten used to peace and quiet without shrill (and very loud) beeping coming from inside my box.

Anyone who still thinks PCs are in any way elegant machines, please raise your hand.