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I wanted to use the most recent nvidia-319(I think) drivers so that Steam would stop complaining about my drivers. I selected the 319 drivers in the System Hardware menu and rebooted. The system hung on reboot for several minutes so I performed a hard-shutdown. After the system came back online, it prompted me for my MySQLServer login (its never done that before). I forgot the credentials so I hard-restarted again and this time it boots to a black screen with a flashing cursor on the top left. NOTHING THAT I TYPE IS SHOWN ON SCREEN. When I hit the power button, it says various things are shutting down/stopping and then the system turns off.
My question is how can I use a LiveCD to revert this driver change? Or is there another (better) method? This is the first time that I have broken my Ubuntu in 4 years :(
Thanks in advance.