[SOLVED] No menus, just black bars top and bottom (VBox)

[swordfish]

I upgraded to 201204 using mintupdate.

After getting past the usual issues with VirtualBox I was able to log in, but got no menus, just black bars top and bottom. On the right of the bottom black bar, I was able to switch windows, but apart from that I was only able to use the right click on the desktop menu. This was the same whether I selected GNOME, Classic or Cinnamon.

After a little puzzling, I checked my VirtualBox machine settings and found 3D acceleration was disabled. Stopping the LMDE guest, enabling 3D acceleration and restarting gave me a workable cinnamon desktop.

So far, it's almost as good as the old GNOME2 interface, but not quite. Next stop MATE?

[swordfish]

Next stop MATE?

Yes. Running MATE now and it looks pretty good so far.

[Habitual]

Do you have an Extension Pack installed?

Edit: This wasn't solved when I posted...