The OS is XP Pro and I want to run dual monitors for extended desktop space. Main card is an ATI 3D RAGE IIC AGP and this is the one that the computer has been using. The BIOS is set for intial video to be the AGP and that part works. The card I want to install is an ATI 3D RAGE II+ PCI. The PCI card has a yellow exclaimation mark and says it can not start. I have tried different PCI slots to no avail. I also tried a S3 Virge/DX pci card and it done the same thing with the yellow exclaimation mark. What do I need to do?