I'm going to reach a little here and what I'm gong to suggest may not work at all, but Fedora has had a wonderful little utility called system-config-display that I have used often when I messup X. If you try to run it and it doesn't exist, yum install system-config-display will install it.
If you want to chack out Xgl, SuSe Linux Enterprise Desktop from Novell includes it in the distribution. They have a 60 day trial if you want to play with it.
Hope this helps.
One lesson I learned many times the hard way... Always make a copy of configuration files before editing them.
Last edited by depdiver; 09-12-2006 at 08:52 PM.