xorg.conf edit 3

That didnt work.

Trying this...
modprobe agpgart
modprobe fglrx
Ctrl-Alt-Backspace

Didnt think it'd work.

Trying two separate Device sections. This guy had some luck with two, although I'm not doing dual head.

No luck. Back to one section now, trying BusID 1:0:1 instead of 1:0:0.