I'm having graphics problems with a 1 day old install of 12.10 on a Sony Vaio VGN-FW139E with a ATI Mobility Radeon HD 3400.
I could not get my HDMI display to be recognized, so I tried installing the proprietary drivers through the Software Center.
When I rebooted however, the resolution had been send to 1024x768, the launcher cannot be seen or accessed, and terminals will not appear.
I can get to the system settings menu by right clicking the desktop, but cannot launch any other applications.
What can I do to resolve this?