Thx for your answer but after hours of trying im about to give it up..
The driver is up to date as you see (8.34.

and works with all my other games (not only two).
I dont get it.. somehow PS doesnt use my hardware acceleration.
What else could be the reason? CS and cal3d are in the (X)ubuntu repos.. What about CEL?
I will try to install all of it from cvs..