Baasje thank you for answering. Unfortunately adjusting the resolution didnt help either.
Ive searched the net and Ive found the (almost) perfect solution!
Screenmouserotate is a tool that rotates your screen and automatically your mouse pointer also. However, there is one little problem. I have no idea how to create a shortcut for this (dont know to much about computers). A keyboard shortcut or a (permanent) icon in the systemtray would be perfect. Any idea how to do this ?
Screenmouserotate can be downloaded here :http://www.math.uaa.alaska.edu/~afkjm/t ... ?q=node/70