My friend's PC had stopped working, there were no beeps, there was only a black screen, not even a bios screen. I had taken each part out and tested them individually in my PC except for the the mATX mb and the p4 cpu. They all seemed to work so I ordered a new mb/cpu combo. I popped them in and I got the bios screen but now when Windows XP Home goes to start I see the splash screen for a fracton of a second and then it restarts. I need some advice on what to do next. Any help would be appreciated.