Comment 1 for bug 58637

Thank you for your bug report. Please try setting up your monitor in your xorg.conf to provide what the manufacter recommends on vertial and horz. refresh rates. to do this i googled my model numbers and changed the refresh rates and added new resolutions up to the max that my monitor will allow. You can also try http://help.ubuntu.com/community/FixVideoResolutionHowto.