For some reason I just put a PCI Geforce Mx4000 video card in my computer and in the bios i chose Primary Video Adapter. PCI Slot 3 ( the slot the video cards in ). I restart with the moniter cable in the PCI video card and everything goes until after Windows XP loads. Then it goes black. If i switch it to the onboard video then it works. And its weird because the onboard video doesnt work when it starts up. whats wrong here? i installed the driver for the geforce...