Ok, i have found the answer.
Downloading other versions of Pardus and reinstalling it, was nothing else but waste of time. Sure, ATI drivers are installed, but still i can't configure it (like in Pardus 2009.2 for instance). I have simply modify main fonts and disable some effects (anti-aliasing, fonts dpi). Now i can work, read, ... and my eyes won't burn x).
Thanks for all replies