I recently made a mistake in attempting to edit Sudoers; so I decided to reinstall Ubuntu 11.04.
When booting into Ubuntu now an error message displays on the Dell 1708FB-BLK monitor: "The current input timing is not supported by this monitor." I'm using the VGA receptacle on this monitor.
I opened ATI Catalyst Control Center and clicked on Monitor 1; but it has 75HZ refresh rate which disagrees with the 60HZ refresh rate elsewhere at Control Center>Monitors and it doesn't allow changes.
I reinstalled the proprietary FGLRX driver and the ATI Catalyst Control Center without any change. Also ran Command: 'xrandr --output DFP1 --Mode 1280x1024 --rate 60; but there was no change.
I'd appreciate any help