I know many people seem to hate Best Buy for fixing computer problems, but we must have gotten lucky. We're down here for the shore on a two day weekend vacation. I plug the computer in, it suddenly dosn't work. No power to anything, despite different plugs, different wall outlets, straightening connections, etc. So, we take it out to best buy in hopes of a quick fix. The guy by repairs says that if it's a power supply problem, their in the back, but we can't take it now because w'ere rather busy... So, we go in the back, find a black shirted tech, and he said that it's probably not the power supply and to bring it in for him to give it a quick once over. He does, notices a few problems. 1)Dust all over the place. I'm too afraid to touch anything, or to try and clean it because it might harm the equipment, but he showed us an easy way to do so . 2nd)I'm not really sure what he did, but he said it was something with a video card conflict? We have a DVD Decoder card in there, and an ATI All In Wonder 7200MB card. I was told the DVD Decoder card was only needed if you intend to run it on the TV. I thought it was needed to help the drive itself run... Could this cause the computer to not start at all, or have problems? It's never happened this way before.... And 3), Even gave us a Nortan Anti-Virus and Security update since it was at a discount, wich is something we needed anyway. Very Nice Guy, did alot of stuff he didn't have to do, especially since he was ready to go on break, but if he reads these forums, kudos once again.... Only one question. My computer just turned itself off for no reason. I had to switch power plugs from the monitor in order to get it to run again. It never did this before. Any ideas?