When I use my Sonos laptop (and iPhone) app, sound will not come out of my R hand speaker (in my main living area). I have Bower and Wilkins stand alone front speakers in a 5.1 system. My outdoor speakers work fine with Sonos, but I can only get sound to come out of the L front speaker. All Equalizer settings are balanced. I have tried re-booting the entire system - no luck. The R speaker works just fine if I simply play using Airplay or a movie - it is only quiet when using Sonos.