Sometimes when I 'try' to adjust the volume of a song using the slider..when I slide up/down it gets loud/lower but then jumps it goes back to the current volume. If i use the apple headphones w/ the remote or the side rocker button, it works like it should. It only is messed up if I try to the adjust the volume on the screen by sliding. I was wondering if other's where having this issue or its my touch? Could it be a software error?