I was defragmenting my E: (two 320gb drives in raid) when my mouse went jerky. Then it seemed to hardlock? It didn't do it on my C:. I've rebooted and starting defragging again and my mouse point is jerky again?
E6300 @ 2.45 (350*7) - 1.375v
2*512geil/dual channel/2v (just passed two passes of memtest)
Audigy 2
Gigabyte DS3
X1800XT
I was also browsing at the time, not sure if that caused the problem.
Edit: This time it defragged ok? All voltages are apparently OK.