After a couple months of using my iPhone, I've noticed that the right side of the lock button does not respond or rarely responds when I press it. The left side and center of the button responds perfectly though. Also, when pressing the whole butting it works perfectly. It can get pretty annoying though. I have not roughed up my iPhone at all. It's just weird... I don't think I can get it replaced because I do not have Apple Care and it has been too long for me to be able to get it replaced at my phone carrier. Is this a common problem? I've googled this and it seems like it is but is it so common that it is bound to happen? I mean it would make sense that you would have to press the center of the button and/or press the whole button to get it to work right? Thanks!!