Comment 3 for bug 570659

Thanks for reporting this bug and help to make ubuntu better

Well, I didn't notice that even trying to the fallback but that can happen.

In fact, netbook-launcher (the 3D launcher using clutter) is testing for hardware acceleration capability and switch to the 2D launcher (efl) if you have software rendered. I guess that even in exiting it properly, gnome-session respawn it.
I have to change the algorithm then ;)