I tried installing Gnome 3 on Ubuntu 11 through the Ubuntu Software Center, but when I start up a Gnome shell I get what I guess is Gnome 2.0 instead. The log in menu gives me a choice between Gnome and Gnome Classic, but they appear to be the same. I have the following graphics card:
VGA compatible controller: nVidia Corporation GF108 [Quadro 1000M] (rev a1)
and I seem to be falling back to Unity 2D.
How do I get Gnome 3 or Unity 3D working?
I got Gnome 3 working, but now Unity 3D is no longer working. I tried installing Ironhide to enable Optimus support, but that didn't work, and eventually I disabled the nVidia card entirely which made it possible for Gnome 3 to work, but not Unity.