Woop! Found a solution! New xorg.conf settings: Code: Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce 8800 GT" Option "NoLogo" "True" Option "RenderAccel" "True" Option "NoRenderExtension" "False" Option "TripleBuffer" "True" Option "AllowGLXWithComposite" "True" Option "NvAGP" "0" Option "AddARGBGLXVisuals" "True" Option "AllowSHMPixmaps" "1" EndSection I'm certain that "AllowGLXWithComposite" solved my problem. Works great now. :D