Looking through the message logs, I noticed that while I had the "Load DRI" line in xorg.conf disabled there were no drm related entries. However when I have "Load DRI" present, I see a... [drm] Initialized drm 1.0.1 20051102 entry but no matching entry showing a drm device being opened like I see on a AGP based Radeon card with FC5... [drm] Initialized radeon 1.22.0 20051229 on minor 0 I suspect this means I either have to wait for a new Xorg release or hope the fglrx x86_64 drivers get fixed. I tried the current release from livna testing and while glxgears works, the pymol modelling program crashes under the fglrx drivers on x86_64. JackA ps Again this is for a ATI FireGL V3100 (RV370) 5B64 (PCIE).