I'm running a Quad core, XP x64 that's only about a year old. Recently replaced the power supply (upgraded to 600W) because the old one (450W) couldn't cut it. Have been experiencing random BSoD's for a few months, haven't been able to track it down. Computer constantly accesses the internet, yet the malware scanners (AdAware and MalwareBytes and SpyBot) come up clean. Idle processes and/or Svchost seem to be the main culprits. Last BSoD happened just after Firefox crashed. I got the browser going again, shut it down, then run AdAware. 20s into the scan it threw the BSoD. I repeated the scan, and it happened again. My brother tried it, and it didn't: aka it doesn't crash for the techie. Here's my stats: Intel Core 2 Quad CPU Q6600 @ 2.40 GHz Bios Version V1.0 07272007 Regular background defrag using Ashampoo Magic Defrag 2. Completed all 7 passes with Memtest86 v2.11 A-OK, no errors. Running with 4GB of ram, page file allowed 2GB-4GB. Initial size of page file 2GB. Temperatures: GPU: 42 C CPU: 55 C Samsung HDD: 48 C I've included the contents of my minidump folder in the zip, as well as the log of HijackThis!. If anyone can help, I'd be most appreciative. saltandpepper.