Does anyone else with this case have this issue or did I just get a bad unit? Whenever I press the bottom portion of the "volume up" button with the case on, it makes the volume go immediately up, then down. I believe the case is somehow positioned where it's accidentally hitting both volume buttons, but to the best of my effort, I haven't been able to position the case so that this does not occur...especially since the case is such a tight fit. Anyone else experiencing this?