I've run into a terrible problem...
I added an ATI Rage 128 Ultra PCI card to the machine (there's no AGP slot, only integrated AGP), and even though XP Pro can use it fine, none of the X11 Rage 128 servers want to function...
I believe the problem is that the integrated AGP is still active, and X11 wants to try to use that, even when the Rage 128 server is selected, which causes X11 to crash completely, not just fail to start, but it hangs Linux, I can't even switch back to a text console.
How can I make it use the Rage card in the PCI slot, and ignore the integrated Intel 810?