More info: I changed the runlevel and then changed it back to 5. When I rebooted I got this message right before it would normally go to the GUI to login:
"The GDM group does not exit, please correct gdm.conf."
I went to etc/opt/gnome/gdm/gdmconf and of course group is set to "gdm". What should it be set to, or where do I find what it should be set to?