That's the one
1) Unplug the computer from the wall
2) Remove the round CMOS battery from its holder
3) Move the CLEAR CMOS jumper from the Normal position to the Clear position for about 15 seconds, then move it back to Normal
4) Take a snack break (optional)
5) Replace the battery
6) Plug the computer back in
That should restore it to default settings and it should begin using its onboard video as its primary video again. Don't be alarmed by a message to the effect of CMOS CHECKSUM BAD or so on, at the first startup. Hope that helps
