Ok, thanx! But cs 1.6 says now that I can't use openGL. I have installed wicked3d once again after upgrading from cs 1.5 to 1.6. I replaced the opengl32.dll in the system32 folder with the wicked3d version (1.0.0.0). I installed csv16v7full.exe, maybe the wrong one? Oh, man, one problem ended up with two... What to do?