I've noticed this happen several times: When I change the window resolution and apply a zoom it will often leave a straight diagonal of lines that are damaged or something.
<img src="http://i253.photobucket.com/albums/hh57/alspal/errrorororor.png">
Here I've changed the resolution size 2x, and applied a 2x zoom. You'll see that inside that red box is a line of pixels which have become insane.
Is this a bug or because of the way I'm doing this?