Weird keyboard lockup

[Tarjei Knapstad]

A colleague is experiencing some weird keyboard lockups under FC4
(fully updated). After some random interval of about 1-2 hours it
looks like X just stops receiving keyboard events, not even responding
to Ctrl-Alt-Backspace. The mouse works just fine, and I can start a
terminal and enter commands by pasting bits and pieces using the
mouse. The box has an ATI graphics card (Radeon 9600), but uses the
stock X 'radeon' driver.

The end of /var/log/Xorg.log.0 looks like (repeated several times):

   SetClientVersion: 0 8
   SetGrabKeysState - disabled
   SetGrabKeysState - enabled

Any ideas to what could be wrong/how to fix this?

Thanks,
--
Tarjei