My screen has started being covered by vertical coloured lines periodically. I can get rid of them by wiggling the whole upper display, which makes me think it is some kind of connection problem. I'm comfortable opening up my macbook and tinkering with it, but I wanted to get some feedback before I start. Here's what the lines look like: And here is a video that shows how the lines appear and disappear: http://vimeo.com/42738525 As you can see, the colours of lines correlate to the image on the screen at that point. I've tried searching for this problem, but cannot find anything. If you have any idea what could be causing this, please let me know.