Hello friend, I have been trying to install Doom 3 under Ubuntu 9.10 but it canít install on this ubunu system. I done this installation process on the windows based OS. But, I donít know the exact step by step process to do this task. I need help to solve this trouble. If anyone having knowledge about the terminal of the Ubuntu, then please mention it. I really want this game installation procedure. Any helps will be appreciates.