intel 845G multiple monitors

[Andrew Matthews]

i have 3 video cards, 1 intergrated intel 845, 1 pci nvida, 1 pci
radeon... both the pci cards work but the intel display shows a crazy
corupt screen and X ignores it, and the other two monitors work
perfectly.

and when i try to reboot it won't because the intel 845 basicly
freezes the system on a refresh.

But if i run it with only the intel in the config it works just fine.
Otherwise it shows a really really bad output on the screen. And it's
not a resolution problem.

Any Suggestions?