Seems like a messed up Gnome configuration to me that's causing it to hang. Can the users log in to a failsafe session? If so, tr y removing (or backing up just in case) any .gnome* or .gconf* directories in the home directories of the users that are having these issues, then restart X (Ctrl+Alt+Backspace) and then try logging in.
Seems like a messed up Gnome configuration to me that's causing it to hang. Can the users log in to a failsafe session? If so, tr y removing (or backing up just in case) any .gnome* or .gconf* directories in the home directories of the users that are having these issues, then restart X (Ctrl+Alt+ Backspace) and then try logging in.