EDIT:
Ok, I solved the problem with the "grafic bug". Its beacause of an option in the catalyst control settings. In the tab games, there is an option for the midmapping details. There you have to choose quality an the squares disapeare. But I still have really low FPS even on low settings.
Hi. I also habe this weird bug.
My system:
E6420 CD2 (@ 3,1Ghz)
Ati 4850
4GB RAM
Asus P5Q Pro
I already tried this to solve the problem without success:
- reinstall witcher 2
- install the newest Ati drivers
- change the graphic settings
Here is one picture of the grafic bug:
http://i370.photobucket.com/albums/oo145/marilynmarduk/witcher22011-05-2722-35-08-90.jpg It doesn't matter if i play on low or medium settings, I always get this squares.
I also have really low performance in the game and really bad frame drops. With low settings I get 18-26 Fps, but the most time around 22 - 24. It feels way too slow for my hardware.
Maybe someone can help us.