momneedshelp, welcome to the forums.
Let's see. You have installed Jaunty server edition.
You have gdm and X installed, so I assume you have augmented the server with these X applications, and have probably also run
This way, when you log in as a normal user, you get a GNOME desktop, yes?Code:sudo apt-get ubuntu-desktop
If the above assumptions are true, then you have essentially installed the Jaunty desktop edition. (The desktop edition can run server applications just like the server edition).
If you turn off or remove the monitor, you could call it a server
When you wish to log in graphically, for your own purposes, or have a guest who wishes to log in, you could just turn on the monitor and have the gdm login window already there.
Does this sound acceptable? If so, you do not have to mess with runlevels at all.
If this is not what you want, please describe what your ideal solution looks like.