dual video asus p4S800 motherboard

[icccapital]

This motherboard has an oboard video card and I bought a regular vga 128 mB agp 8x video card to be able to run a dual monitor environment. But when the agp card is in the onboard video does not load. When I try to manually install it, it says code 10 "cannot start". When the agp card is removed it runs the onboard card fine.

I tried to make them each the primary in the bios. Is there a conflict problem with this motherboard? I can't find anything on the net just yet. Thanks.

 

[FlashDude]

Alot of boards disable the onboard graphics when the agp slot is used, there's nothing you can do about it. Why didn't you just buy a card with dual outputs??