I've been working on this a few days, and reading about others struggling with the ATI driver. I can't seem to find anything definitive. glxinfo shows among other things: OpenGL vendor string: Mesa project: www.mesa3d.org OpenGL renderer string: Mesa GLX Indirect OpenGL version string: 1.2 (1.5 Mesa 6.5.1) Running glxgears gives me: $ glxgears Xlib: extension "XFree86-DRI" missing on display ":0.0". 1951 frames in 5.0 seconds = 389.746 FPS 3240 frames in 5.2 seconds = 628.040 FPS 3240 frames in 5.0 seconds = 642.329 FPS The above are with the Livna driver; after installing it, I rebooted into runlevel 3 and ran fglrx-config-display; then restarted into X I've tried various mods to xorg.conf such as disabling composite - my current is: Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Synaptics" "CorePointer" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Synaptics" Driver "synaptics" Option "Device" "/dev/input/mice" Option "Protocol" "auto-dev" Option "Emulate3Buttons" "yes" Option "LeftEdge" "120" Option "RightEdge" "830" Option "TopEdge" "120" Option "BottomEdge" "650" Option "FingerLow" "14" Option "FingerHigh" "15" Option "MaxTapMove" "110" Option "VertScrollDelta" "20" Option "HorizScrollDelta" "20" Option "MinSpeed" "0.3" Option "MaxSpeed" "0.75" EndSection Section "Device" Identifier "Videocard0" Driver "fglrx" Option "VideoOverlay" "on" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Extensions" Option "Composite" "Disable" EndSection Am I on a fools errand? Should I forget about the ATI driver and revert? -- Claude Jones Levit & James, Inc. Leesburg, VA 20175 703-771-1549