gnome3 broken on wheezy

[ChadDavis <chadmichaeldavis@gmail.com>]

After recent upgrades, my gnome3 no longer works.  The system boots and I can log in to an X system, but it looks more like gnome2, than gnome3; the whole activities thing and the favorites menu is gone.  Instead, I have the mutliple window changer thing in the bottom right corner.

While I know many people would see this as an improvement, I actually love gnome3.

So, how do I start troubleshooting this?  I looked in /var/log/gdm3 logs, but couldn't see anything that lept out.  There were some errors from the nvidia driver levels, but those were in older logs and, as I say, the UI works, it's just not gnome3.