Calm down! I had similar problems under Arch Linux. I think its a problem with Gnome 3.x. For me it has helped to run the game under another desktop environment like XFCE, KDE or window manager like … (View Post)
Have you tried deleting the Natural Selection 2 folder in /home/<username>/.config/? In this folder the compiled shader are saved. I had a broken ingame menu after updating my AMD GPU driver. (View Post)