[ShadowMarth]

I had the same error with my 9250. It wasn't on the supported cards list... I'll see if I can find it.

Hmm... all I can find at the moment is this:
ATI Radeon 8500 or greater

Odd... this forum post lists yours as a good one.

Ah, found it:

nVidia
GeForce FX5700
GeForce FX5800
GeForce FX5900
GeForce FX5950
GeForce 6200
GeForce 6200 TurboCache-16
GeForce 6600 series
GeForce 6800 series
GeForce PCX 5900

ATi
Radeon 8500
Radeon 9500
Radeon 9600
Radeon 9700
Radeon 9800 series
Radeon X300
Radeon X600
Radeon X700
Radeon X800
Radeon X850 series