13 Mar
2007
13 Mar
'07
4:43 p.m.
OK, then what you have to do is log on as root and do gdmsetup from a terminal. This should bring up all the gdm configuration screens. And I think that in one of these there is a controller for what options are offered at login time. You can't do su -, because then it refuses to open the display for reasons the rest of the group will immediately understand and know how to deal with....but I don't! Its something to do with specifying the screen used at launch.
However, the root log on should work.
Peter