I'm currently running Mint14 64-bit on a Toshiba Satellite L350D. The screen is capable of 1440x900 display, but in settings the best resolution available is 1024x768. I'm pretty certain when I was running Mint12 I had full resolution, so not sure what has gone wrong. The current driver is 'Gallium 0.4 on ATI RS690'.
Any suggestions on how to resolve this issue are appreciated.