I haven't had any luck but things have been evolving a bit. I can now play in window mode. But sound is sometimes off. Changing resolution invariably leads to Xserver crash and since my defalut resolution is 1024*768 I think some games try to change that when going to fullscreen. This could explain why they run in window mode. Nevertheless things remain very strange: at first I had not installed gnome since I'm a KDE user and the only user on my machine. At that time games did did run but awfully slowly in any mode. Yesterday I installed gnome to give it a try then came back to my 3D problem. And I found this new situation! I can't believe it's related. Well maybe in the dependencies something got installed that modified the situation. By the way, a friend of mine experiences exactly the same problems... What's wrong with voodoo cards?
