ive noticed that occaisonally when I go to the app store and click the app and the pop up screen comes up with the description and reviews etc my screen gets a few little lines in it that looks like something isnt working right. It doesnt do it every time and only does it in this situation, not on any other screens or pop ups. Wondering if its just a glitch in the app store or if it could possibly be a hardware issue. With it only doing this in the one sitiation I am inclined to think its a software bug