Is there a GUI in xorg for changing the video driver?

I was under the impression there was a GUI app for changing the Xorg video driver. If so, where is it? I don't see it in 10.04.

If you're looking to switch between the proprietary and Free driver for your video card (e.g. if you have an ATI or NVidia card), try jockey.

On the default Ubuntu desktop this is in: System - Administration - Hardware Drivers

You can enable and disable hardware drivers there.

If you mean a GUI for changing display-related properties, then you can find that at System->Preferences->Monitors.

If you are referring to a GUI tool for editing xorg.conf, I am not aware of one - you're better off editing the file directly (details here).

Perhaps you're looking for dpkg-reconfigure. It's terminal-based GUI for reconfiguring software. You should be able to change your xorg driver settings with sudo dpkg-reconfigure xserver-xorg.