Second Monitor screen went pure green can't see anything

[Tom Pake]

My second monitor all of sudden went green. I have no idea why or how to fix it.
I turned off the monitor, unplugged it and it still is green, however it still works and I can send browsers over there but I can't see past the huge green WALL

help

 

[Tom Pake]

http://imgur.com/a/GN6uS