Picture in Picture Visual Glitch

I'm using SolidWorks 2014 (company won't pay to update it) and I've been having this issue where when I try to do something like sketch a line or do anything in the window, it gives me this weird picture in picture visual (pic included). I can't do anything while its doing this and it goes back to normal when I click on anything outside Solidworks. Anyone have a similar issue and know how to fix it? Thank you