Graphic Card Drivers and 3D Video Acceleration
Note: If you have previously used Xgl with compiz, you should be good to go and you can skip this step.
The Xgl X server requires 3D video acceleration. Most graphics cards should automatically support 3D
This will allow you to start Xgl as an option at the login screen. The Xgl server starts on DISPLAY :1 as part of your desktop session and terminates when you end your session. This is convenient route as you can simply select a regular session if Xgl doe