After I clean installed 11.10 from 11.04 on my Toshiba R500, I can't get any widescreen resolutions to select in the Screen settings. Strangely, the login screen appears widescreen with no issues.

I was able to manually add the correct widescreen resolution with xrandr, however it was lost on restart.

The graphics card is an integrated 'Intel® Graphics Media Accelerator 945GMS'.