Hi, I had to define the following in /etc/gmd/gdm.conf before gdm works properly: HaltCommand=/usr/bin/sudo /sbin/poweroff RebootCommand=/usr/bin/sudo /sbin/reboot I don't think that I had to do the same when my machine was not woody/sid; gdm just needed to be installed, and that was it. Interesting... why do I have to use sudo? Oki