Im new to ubuntu but not that much as im now almost 90% used to it :-). my problem is that my laptop screen was fully utilised in the ubuntu 11.04 natty narwhal but after connecting it to a projector and making it display by setting at the monitor, now it has edges which are pising me off. please advice guys?
If you use Unity, search for 'Monitors', and if Gnome2, System->Preferences->Monitors, and try to reset the resolution of your display. The highest available resolution is usually the right one.