Re: Linux X-server
ubuntu is deb based, go to a console and type (as root) : dpkg-reconfigure xserver-xfree86, that should give you the config screens for X, works on my debian system, should do on ubuntu. I think you've got to hi Esc a few times to go back a few screens though, might be handy to have your monitor manual at hand too.
Hard work has a future, laziness pays off now. ;)