You can change this using GNOME Shell the default from GNOME 3.
Since GNOME 3.8 the Fallback Mode (GNOME Panel like GNOME 2) was removed, now only works with GNOME Shell and 3D acceleration.
You can change this using GNOME Shell the default from GNOME 3.
Since GNOME 3.8 the Fallback Mode (GNOME Panel like GNOME 2) was removed, now only works with GNOME Shell and 3D acceleration.