Hopefully this is the correct forum for the problem I am facing with my computer. It is a completely new system which I recieved around the 17th of January 2008. I filled in the specs of my machine in my profile, hopefully you all see it. Well to start things off, I will go about explaining everything haha. I have run memtest86 and checked the memory; it came back fine, no errors. I put my XP CD in and ran CHKDSK with the recovery option and during the first scan with /p it came back with "some known errors," or something like that. I rescanned with /p again, and then tried /r and the CHKDSK did not come back with the small error mesage from the first scan. Maybe it is the Hard Drive, but it doesn't seem like it does it? I would like to mention that I can boot into safe mode. I tried going into safe mode after it failed to boot into Windows the very first time and it worked. I can always go into safe mode when the computer fails to boot past the Windows splash screen. This is good from what I have read or so I believe. I read maybe it was the PSU, so I did some invesigating of my own by opening up the case and the PSU that came with my case was only max 400w. My BFG GeForce 8800GT needs a minimum 425w PSU, so that seemed like the obvious error. I should have been more clear when speaking with the techs at where I bought the computer. I did ask whether that PSU was capable of running my system and they agreed and sent me home with it anyways. So today I went back and told them of the discrepancy between the needed wattage of my video card and the PSU in the case and they said sorry and put in the Cooler Master eXtremePower RP-500-PCAR. So I get home believeing my issue should be solved and have a nap. I wake up this evening and the computer boots past the Windows splash screen, but it goes black after that screen loads and is unresponsive. I'd like to mention that this freezing or locking up during or after the Windows splash screen happens from cold boots. Usually the first boot when I wake up from a nights sleep or nap. Thank you for any help or insight, it is much appreciated.