Help! I bought a Niles ZR-4630 recently to put in a good starter multi-zone system. I only had one set of speakers at the time and one keypad. I tested it as best I could with one set of speakers and all the outputs worked. Tonight I hooked up another set of speakers and a keypad. The problem is when I push any of the master control buttons ALL the zones come on. It is supposed to turn all zones on with a 3 second press and only the zone the keypad is in with a short press, however it seems to do just the opposite. Also changing sources will turn on all zones unless you do the 3 second press thing. Even more frustrating, turning a zone off turns off all zones regardless of a short button press or a long one. Individual zone volume controls work fine and so does mute. I've scoured the manual and can't find anywhere this can be set. I even erased all programming per the manual and the problem persists. Did I get ripped off? I searched the forums but didn't see any posts with this issue.