Last night everything was working perfectly fine with my computer. Every hardware piece is brand new. I tried to install windows xp, but found out my cd was scratched up after hearing some shaking noises inside of my dvd rom. After that, I took the cd out and my computer was still working fine. I managed to create a backup of the xp cd on another computer, and this morning when i try to turn my computer on, everything runs (fans, motherboard, hd), but i get no post screen or anything. No display on the monitor. It seems like a run into problems one after another. help?