Screen Rotation
Firstly, apologies for going quiet recently!
Anyway, an interesting question came up from a school which found its screen / desktop rotated by 90 degrees. This is a new(-ish) feature built into Intel Graphic Chipset / Drivers which can be useful for presentations etc, but also really annoying if you find your screen rotated! To get your screen back simply hold the CTRL and ALT key and press the up arrow key. Press the right arrow key to rotate 90 degress to the right, down arrow key for 180 degress etc. Look at the Intel software for information on disabling hot keys if it is a problem.