This video is a quick guide on how to turn your computer screen up side down. If you have Windows Vista, right click on mouse and go to graphics properties. Go to display settings. On the rotation box, choose the desired angle of rotation. Click apply and hit OK to confirm settings. For the keyboard shortcut, click control+alt+down arrow key to turn screen up side down. Click control+alt+right arrow key to turn screen to the left. Click control+alt+left arrow key to turn screen to the right. Click control+alt+up arrow key to go back to normal view.