Try this. It probably won't do anything, but go into the BIOS.
Now, make sure if there is any onboard graphics, switching them off.
2, make sure the AGP bus that handles the video card is set to boot first as the graphics port so it doesn't have to manually search.
Sometimes PCI is made to boot first, when you haven't got a card inserted into this.
I doubt that'll do anything, but anythings worth a try.