> I have several games installed, but only one of them (diablo 2) is working. All of the others give me some error about not being able to find a graphics card that works. > If the console output shows this message: Code: err:wgl:is_extension_supported No OpenGL extensions found, check if your OpenGL setup is correct! then the problem could be http://bugs.winehq.org/show_bug.cgi?id=30270. > All of the games have worked before, under a previous kubuntu release (am currently using 12.04). You didn't say whether your OS is 32 or 64 bit; the latter is very broken when it comes to Wine.