Sorry, if you are using 2.24, that method will not work. I assumed
you were talking about the older GDM since you made mention of the
gdm.custom file.
I don't believe the new GDM has any mechanism to control the users which
are displayed. The configuration options it does support are listed
here:
http://live.gnome.org/GDM/2.22/Configuration
Sorry for the confusion.
No problem Brian.
What do you suggest I do? Is there a plan to implement this feature?
Should I post a feature request through your bugzilla? Do you suggest
something else?