How do you change your computer if its tilted?

Most monitors have a 'menu' button. Then you need to cycle through the menu, to find the one that has to do with resizing and position of the display. There should be one that looks like /_7 (sorry it's supposed to look like a parallelogram). This has to do with the 'skew'. then adjust using the left/right (or up/down) buttons, until it looks correct.