I am hoping one of you guys can offer some words of wisdom as my poor little brain id bereft of ideas right now. I have a pc which was constantly rebooting, I checked the usual things and the hard drive was defective so have replaced it. I have since tried loading windows on to it but it keeps rebooting part way through copying files from the cd on to the hard drive. When I have been there watching it it seems to stop at the same file on the disc, I have used this disc on a couple of machines since this incident and have loaded XP without a problem, so assume the cd is OK. I have tried a new PSU, memory and cd-rom but still have the same problem with it rebooting while copying files. I have tried everything I can think of right now so am hoping one of you guys can figure out what is going on here.