Well i got an ATI Radeon X1950 Pro AGP (512MB) Card and using Ati Catalyst 7.4 from the install CD and everything works perfectly.
For some reason the new catalyst drivers (7.10, 7.11, 7.12 and so on) won't work with my card. My PC rebooting after the installation, the windows load screen appears and after he want to change to the logon screen the pc just restarts.
Next time i will buy me a NVIDIA card, NVIDIA got the better drivers...
Well... maybe i try Catalyst 8.12 today... but before i'm doing that i will make a backup