Desktop Upside Down
Question: My desktop display is upside down, i.e. everything is upside down
Answer:
Try pressing ctrl and alt together then either the up, down, right or
left arrow key to rotate the screen. You can also check your display
properties by right clicking on the desktop and selecting properties
and see if there is a setting in there maybe under Advanced to rotate
the screen back to right side up or to disable rotation. If that does
not work you can remove the video card from device manager then reboot and let it find it again to see if that fixes the problem.