I changed the resolution and now Gnome crashes
 

I have the nVidia drivers installed, and from the menu I changed the resolution, now Gnome crashes instantly. I am assuming I just have to reset the values to their original resolution but I am not sure where to do that, I did get it booted into a command prompt though.

If anyone can tell me where the file is I need to config that would be a huge help. Thanks.

The file you need to change is /etc/X11/XF86Config-4

Near the bottom will be a lists of resolutions. Make sure the first in the list is the highest, and the resolution your system does work with.

Also make sure you have the right monitor and video card selected in redhat->System Settings->Display->Hardware.