Out of the blue my second monitor split in two with a black bar in the middle and I can't seem to be able to fix it. It is currently connected with analog VGA but the same thing (even worse) happens when I connect it with HDMI, I have an image of the problem below.
http://postimg.org/image/xfto7ks2x/
http://postimg.org/image/xfto7ks2x/