Sorry, I made a typing mistake.
The link for the video is
http://www.abdn.ac.uk/~u06ck5/Video-0002.mp4
Hope that helps.
See when I go to the preferences and it shows me the two screens, the height of the screen of my mac, is bigger than the height of my tft screen, but that's only how it looks in the preferences, because in reality, the height of my tft is bigger that my laptops screen, as you can see on the video.
Hope that makes it a bit clearer.