Acrobat Reader DC New Update Screwed my Monitor
Automatic update today changed my monitor background from blue to green, and not in a good way. I'm using Win 10. The picture went from HD to the worst screen I've ever seen. It looks lined or ridged like corduroy fabric. It has the same effect on all my programs.
It was caused by an Acrobat Reader DC automatic update, but when I rebooted it cleared the problem.
This particular issue is not related to Acrobat Reader DC.
The problem is generally caused by a loose or faulty video cable.