Can't answer your question about the agp issue but you definitely will have to get a pci card to reflash the bios; that is unless you can are very good at typing blind. Is there a used computer shop near you where you can buy an old, cheap pci video card? Any will do. You just need it to display ASCI characters on the back and white boot up screen so you can type the flash commands. Hope you saved your old bios file.