Okay, here it goes. I recently built a computer roughly 6 months ago, with the following specs, AMD Athlon 3500 +, Asus A8V Deluxe Mobo, Seagate Barricuda 160 GB HD (SATA), ATI Radeon 9800 XT. I Installed Windows XP Pro SP 2 on it and it worked fine for about those 6 months. Then Recently I got a critical system error, and it restarted I didnt install any new hardware or software, this error just happened for no reason, and it would get to right before the windows logo screen and freeze. I would restart it again, and then it would bring me to the "Choose windows boot mode" screen. I can boot into safe mode, but if i choose any other option such as, Boot windows from last good config, or Boot windows normally, it would freeze right at that menu. So i decided to reformat it and do a fresh install of windows. I reinstalled it, and it loaded fine, i started to put all the drivers and such back on, and they would load on fine. After 3 or so restarts it wouldnt boot again, and it would exhibit the same errors as before, getting stuck and not booting at that same screen. I figured it could possibly be a hardware issue, so i ran some diagnostics on the Hard Drive, Ram, CPU, and they seemed to check out fine. I even changed the hard drive to the mobos other hard drive controller figuring ithe hd controller could be messed up, and still the same problemI then changed the Ethernet card, instead of using the Onboard, and i was still getting the same errors. I have reformatted several times now, and it is exhibiting the same problems roughly after 3 or so restarts. I am truthfully stuck here and i can't think of what the problem can be and have ran out of all the options i can check. If any of you guys out there could help me out, I would appreciate it greatly! Thanks again.