It looks like a display driver problem. I get similar problems on my kids' PC when they switch from one game to another that uses a different screen resolution and back again.
Try closing all open programs, resetting the screen resolution etc and try again. If that doesn't work, try restarting. If that doesn't work, shut off the PC and start from cold. If that doesn't work the driver may have been corrupted and you might need to reload it.
Then again it might be (e) None of the above. Good luck.