Same problem here with a fresh install of Ubuntu 12.10 64 bits, with Phenom processor and Radeon 6850 graphic card.
Either fglrx or fglrx-update open a session without Unity : no launcher, no dash.
Not easy to go back to the free driver ! How to do :
Launch a Terminal with ctrl+alt+ T keys
Type : sudo apt-get purge fglrx*
give the password
Accept to remove the package when asked (type o)
Start again by typing : sudo shutdown now
Same problem here with a fresh install of Ubuntu 12.10 64 bits, with Phenom processor and Radeon 6850 graphic card.
Either fglrx or fglrx-update open a session without Unity : no launcher, no dash.
Not easy to go back to the free driver ! How to do :
Launch a Terminal with ctrl+alt+ T keys
Type : sudo apt-get purge fglrx*
give the password
Accept to remove the package when asked (type o)
Start again by typing : sudo shutdown now