That is very strange.

Have you had any luck since then?

You might try removing the kext caches. rm /System/Library/*kext*

Note that OS X will then take a lot longer to boot as it rebuilds the kextcache on the first reboot. I should also say that I'm grasping at straws. I'm much more familiar with OS 9 than OS X.

Peace,
Drew
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Power to the PowerPC!