Specs: Windows XP Home Edition SP2 Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz 2394 MHz NVIDIA GeForce 8800 GTS 2GB Ram Temps: GPU = 55 Idle - 65 in game CPU = 40 Idel - 50 in game Voltages (Cool Master ATX 12V 650w): Vcore - 1.35 3.3v - 3.38 5v - 5.13 12v - 11.79 5v SB - 5.15 Just recently I moved my computer and for the past few weeks it has been losing power, freezing, and though rare it will also sometimes blue screen. Its not over heating, the voltages look normal, I've cleaned the inside of dust including underneath the CPU fan and the fan itself, I've checked connections, and everything appears to be seated correctly. Still I'm 90% certain this is a hardware problem because it only started after my move. Now this is where it gets confusing. It has almost no problem when its under a load playing a game. Starting programs can sometimes cause problem, but once its running its fine. The worst are pictures and images. If I'm on the internet and I view a site with lots of pictures 1-15mins in it will do one of the above. The same with browsing thumbnails in a file or opening the pictures. Even idling when I'm not even there it will lose power and restart and as far as I can figure this occurs because it was pulling up the screen saver. After a power loss or freeze it can sometimes hang when rebooting as well. I'm thinking it might have to be the HD because it also freezes when I try and update to SP3. I had reformatted a month before I moved and just to make sure it wasn't windows I repaired it and tried updating fully and each time it would freeze on the install. The PSU, CPU, GPU, and RAM hold out fine during games so I can't see them being the problem. Just when that HD starts spinning does anything bad tend to happen. Yet, I don't think it went bad in the 6 hours it took me to move. Any suggestion would be helpful.