are all giving up. the power switch isn't clicking properly, the silence switch doesn't click back and forward very well. Im not impressed. ive had every iphone from launch and the build quality on this one is the worst, its less than 6 months old! it should last longer than this surely. Actually ive NEVER had any issue with any iphone ive owned before this one I am going to take it back, however its got a tiny crack on the back in the glass where i knocked it.. ( the buttons were giving up before then anyway, so they are unrelated) will Apple replace it, given the chipped class? and has anyone else had problems with their buttons?