I am running Gnome 3 on top of an Ubuntu 11.04 install. everything had been running fine, but some updates I applied required my rebooting the box to finish the install. upon restarting everything came up fine, except gnome-shell is no longer in the selection list at the login dialog. if i log into either unity or gnome classic, i can do open a shell and run gnome-shell --replace, and things are back to how i had them. i just don't understand what may have happened to cause this?. any ideas, or is the unity community just mad folk are switching to gnome 3 away from unity and they are trying to make things a bit more difficult:)
either way, thanks for any help that can be afforded
tom