Again a last minute glitch! New AVR-S900W hooked up yesterday, was playing music off iPhone 4 and iPod 5 up till earlier today and now the receiver won't recognize any of the devices that it previously recognized??? Could a specific button have been accidentally pushed? I've turned off and on the receiver, un plugged the iPhone, tried different cables. The receiver still works on blu-ray function but when the dial is turned back to USB is won't recognize. Anyone help a panicking Dad out before a 13th bday party??!!