For the past few months I have been having some VERY strange issues with my system. Here is what I'm running:
ASUS P5N-E SLI
Core2Quad Q6600 (Kentsfield) (not overclocked)
4GB (2x2) DDR2 800 OCZ RAM
eVGA GTX 260 core216
1x SATA HD
1x IDE DVD/RW drive
2x 120mm fans
Corsair 650W PSU...