I have just installed Quake IV today on Gutsy (x64). It seems to play OK so far, however when I was rechecking some settings I noticed the multiple CPU setting was greyed out. I could not change it to recognize my CPU (Core 2 Quad Q6600).

If I cannot change the setting from within the game, can I edit the config file or would I need to put in a command in the console when the game is running?

Any advice would be greatly welcomed.