According to: '/etc/udev/rules.d/40-permissions.rules' permissions for '/dev/nvidia*' should be 'root.video' meaning that you just add yourself to the 'video' group, and voila! BUT... on my box they are 'root.root' as well! I haven't found this to be a problem, however. If you really need these permissions, put a script in '/etc/init.d', there's a template init script already in that directory called 'skeleton', you would only need to fill in the "start" section. You may want to keep these two URLS handy - essential reading: NVIDIA Performance problems and workarounds: http://www.nvnews.net/vbulletin/showthread.php?t=118088 NVIDIA Stability problems and workarounds: http://www.nvnews.net/vbulletin/showthread.php?t=58498 - shane Dave Phillips wrote: