i'm having a strange problem. i had my Q6600 overclocked to 3.2ghz and prime95 was running stable with very reasonable temps. later i began having problems with lockups while web browsing, so i reduced my clock speed to normal. the lockups kept happening. i ran prime95 while at normal clock speed (2.4ghz) and started getting errors after 20-30 minutes. i have round off checking enabled, and am running the large FFTs torture test on all 4 cores. why would i be getting errors at normal clock speed? temps were low. i tried taking out one DIMM, then swapping for the other. no change. doesn't seem to be a memory issue. i don't get it. any advice appreciated...