PCI (not PCI-E) video card conflicting w/onboard video

[JEDI]

I have an AMD690G mobo. It has a Radeon 1250 onboard video.

I also have a Radeon 7000 PCI video card.

Surroundview is enabled in Bios.

20" LCD is connected to DVI port on the 1250.
17" CRT is connected to DSUB port on the 1250.
2nd 20" LCD is connected to DVI on the 7000.

the latest ATI drivers (Catalyst 8.2) does not work for the 7000.
On ATI's site, Catalyst 6.x) is the latest version for the 7000.

I unstalled 8.2, rebooted, then installed 6.x.

I rebooted, and WinXP went into a continuous reboot loop
I removed the 7000, and it boots fine.

(The 7000 worked fine on my backup system.)

How do i get the 7000 and 1250 to work together?