I have seen this problem on the forums but it was suggested that each computer is different and I should start my own forum... here we go. The first boot of the day will lock up my computer. It will happen within 10-30 minutes. Video gaming will cause this to happen faster. During gaming, the sound is the first thing to go. If I keep playing without the sound the problems continue to get worse. Eventually, the computer will not type correctly. The keys will appear to be pressed even though I am not doing it. Thiiiiiiiiiiiiiiiiiiiiiiiiiiiiiis is an example. At this point, the BSOD is looming and will happen within 2 minutes. After the restart the computer is good to go and performs great... unless I let it go into sleep mode. If it sleeps, I need to wait for it to show the signs of freezing and reboot it again. It can run for days after that first restart. I've tried booting it and immediately restarting the computer but that does not fix the problem either... it HAS to show the signs of or (If I boot it and walk away for a while) freeze and be restarted. While browsing the forums today, I actually had this problem occur. I read to check the clock time and found the error a few moments before the freeze. Here are the pastes from that log: (I can't post links and for some reason this forum thinks the copy paste of the event log is a copied link.) This stuff doesn't mean anything to me. However, I'm decent with computers and am comfortable following directions. My computer is custom built (I've done several) and has been added to and upgraded a few times. This problem still presists despite a new motherboard, video card, sound card, an additional hard drive, a new processor and the latest drivers for all my stuff. It happend with XP pro, Vista, and now with 7. After reading the error logs I see the source says Disk. I've defragged and error checked regularly and even gone though several reformats. Any suggestions, I'm open! I hope this was enough information but will gladly provide additional.