Windows 7 introduces some new shortcuts compared to the earlier versions of Windows. My absolute favorite of the new shortcuts is Windows key + P. This allows you to choose the presentation mode, i.e. attach or detach an external display, such as a projector, a TV or a regular computer display. In the previous versions of Windows there was no simple way to do it (well, according to my definition of simple -- of course I know how to do it, but anyway). Windows 7 makes it extremely simple.