I installed the nvidia-6629 driver for x86_64 on a amd64 pc today using the nvidia installer and put the /dev/nvidia* devices in /etc/udev/devices/ correctly. X starts up fine and everything is OK but when I try to run glxgears I get the well known message: Error: Could not open /dev/nvidiactl because the permissions are too resticitive. Please see the FREQUENTLY ASKED QUESTIONS section of /usr/share/doc/NVIDIA_GLX-1.0/README for steps to correct. Is the 'solution' suggested in the FREQUENTLY ASKED QUESTIONS section of the nvidia README still relevant in the udev era. (namely: remove line from /etc/security/console.perms starting with <dri>). Shouldn't this problem be resolved by 'chowning' /etc/udev/devices/nvidia* to root:group and adding the user to this group, and maybe changing some permissions too. Or does this entail some other changes elsewhere when using udev. Alexander