snejjj wrote: > what graphics card do you have? do you use the proprietary driver or the open-source one? > if it's an ATI card, then that's probably your problem. ATI cards are very buggy with linux and 3D apps. > if it's an INTEL card, that's almost certainly the problem, as INTEL has chosen not to support Linux at all. I have an Nvidia Geforce 9600M GT 1GB. I just installed the latest drivers with Jockey, and now it works! The problem was that there were two available drivers in Jockey, and I installed the wrong one first. Thank you very much for helping me :D Culinax