Right click at an open spot of your desktop > select Graphic options > select Rotate > try the degree that suits your situation. If it is upsidedown, I would try 180 degrees.
A long way is to do a system restore. Pick a date BEFORE this happens as your restore point.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.