Oh.. so just enable root logins in gdm/kdm, and log in as root to a total GUI when needed?
Kind of a pain in the ass when you have an autologin enabled. You either have to log out in such a way that it won't autologin again — in which case you have to remember to either log back in as the autologin user, or just reboot, when done — or you have to run a second X server.
Edited by wfaulk (11/11/200800:41) Edit Reason: fix unparseable sentence