Hey Guys & Gals! I need help bad!!! I'll give you my box info, then tell you my sad story. I have: Win XP Pro SP1 AMD Atholon XP 2000+ MB Soyo KT333 Platinum Ultra (Latest Bios) 512mb ram (Crucial DDR PC2700) ATI All in Wonder 128 SB Audigy Platinum Sound 2.0 USB Card(PCI) DVD/RW CD/RW 2 WD HDD Generic 56K Modem(PCI) At the time the box was built, all the latest drivers available were installed. The box has been running without a single problem since Jan. 2005. What has happened was I was dialing into a PBX for work using Hyper Access like I do all day every day, and as the modem was negotiating the computer rebooted out of the blue. It came back up and I tried again and at the same exact time it rebooted again, only this time I got a different welcome screen, and it wanted me to log in, (which I had set so I wouldn't have to) So I logged in and the PC rebooted again only this time I got a BSOD during Windows boot saying: IRQL_NOT_LESS_OR_EQUAL at the top and STOP 0x000000D1 at the bottom. I looked this up and it referenced a driver problem. I booted again and at the same point I got a different BSOD saying "The driver is attempting to access memory beyond the end of the allocation" with STOP 0x000000D6. On one of those screens it also suggested to use Verifier.exe to troubleshoot the driver causing the problem. I booted into safe mode and ran verifier, but couldn't really figure out how to use it. I then thought maybe it had something to do with my modem, so removed it and the driver to no avail. I then removed Hyper Access, but no help. I read on a BBS that other people had similar problems, and one of the fixes was to go into msconfig and disable all startup items and reboot. I tried that and viola, it booted up. False hopes. The next time I booted it went right back to the BSOD. I have taken the system down to the primary drive and a video card, and have reseated the ram. No help!!! I have checked the CPU temp and it is 125F, and I have plenty of fans running on the box. I am now writing this in Safe Mode, which everything seems to be fine! I know this is long winded, but I am at a loss of what to do next. I am trying to avoid reinstalling XP. Can anyone offer any suggestions?