So I noticed my iPad Air 2 has what has been referred to as a clicking noise when you press hard on the screen, especially if you are holding the back side as well. My iPad is now almost two years old, so it's not like I think Apple should fix this "problem". My question is if it even is a problem at all? it doesn't happen often unless I'm playing a game or something and I get really aggressive. Do I just ignore it, or do I need to be careful now? I guess what I really want to know is what causes it. So tldr, what is causing the clicking noise on the screen in my iPad?