Got my Zeppelin Air this weekend (sounds amazing) but whenever I play it over AirPlay via my iPhone, the volume controls on both the speakers and the remote become weird. Sometimes they don't work at all but sometimes when I hit volume up once it will reduce the volume. If I play music through AirPlay on my computer or dock the phone into the speakers, the volume controls are fine. I have the store that I bought it from contacting B&W today to see if there is something to fix this. Was just wondering if anybody else had this kind of issue?