Once in a while someone needs to either replace or reconfigure their display monitor to correct refersh rates and or resolution settings. It's a very simple procedure in Hardy. I haven't tried it in Intrepid or above yet. I'll post back after testing in 8.10. Anyway just paste the code below in a terminal screen. Once the GUI comes up, just click on the monitor icon to the right of the model listed in the drop down box, look through the list and make your pick. The rest is self explanatory.