turn on "fallback" mode of GNOME3 on Fedora15

Question: How  to turn on “fallback” mode of GNOME3 ?

Answer :  

Fallback mode is GNOME 3’s more GNOME 2-like mode of operation for people without hardware 3D – or who just don’t like the GNOME Shell. To activate fallbackmode:

 

 

Open system settings >> system info >> graphics >> forced fallback mode

turn it to “on”, log-out and log-in again, and well… you have a usable desktop again, with minimize / maximize button, app bar at bottom for app switching, etc.

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