I did a system restore on my Windows XP Professional because it wouldn't load the next day after shut down. I tried everything before the restore. After the restore, it ran normal for one day. Turned on later that night and it went back to constantly reloading. I can get in with safe mode, safe load with networking. I ran virus and malware scans that come up with nothing and every other suggestions. This computer ran perfect with all updated updates. I ran the diagnostic disc twice. Everything looks fine except IEEE1394 Controller not detected (test not run) n/a; AGP video card not detected ,AGP video card n/a; PCI Express video card not detected, PCI express: n/a. I have not added noting new to this computer. It ran perfect with not problems. It is a Compaq Presario SR1913WM. Can someone please help?