When I turn the computer on, it stops before all the bios data comes on the screen. When I press the F8 key, it continues to boot up and run perfectly. I've tried System Restore and tried to repair Windows with the CD. The system stops before it even gets to the CD, and when F8 is pressed it doesn't even open the CD. All the drives work ok and this has happened out of the blue. I'm using XP Home and a P4, 3.06G processor. Any info would greatly be appreciated.