After leaving my desktop on for about an hour and then coming back, I was faced with a lockup after I tried to log back in. Currently using XP Home. I rebooted after the lockup and now I am faced with a "unlock keyboard" prompt anytime I reboot. I am unable to get to Windows at all. I can choose to enter the BIOS, network boot, or F1 to resume. If I hit resume, try and boot from a boot CD or floppy, it brings me to a blank screen with a flashing cursor. I have tried different keyboards, unplugging the keyboard but I still get the unlock keyboard prompt or if I hit resume or try and boot from a disk, I get the blank screen with the flashing cursor.