I am new to the home theather world and just purchased (open box) a Yamaha YHT-450 system from BB. The problem I'm having is that I can't seem to get any sound from the front right speaker. All the other speakers I've hooked up work and I haven't changed any of the factory presets on the receiver (that I know of).

What I've tried so far:
1)Tried the left speaker on the right channel wire - no sound
2)Tried the right front speaker on the left channel wire - good sound.
3)Tried the B channel for the right front speaker - no sound.
4)Tried a new stretch of speaker wire - no sound
5)Tried cycling through the myriad of sound mode choices - no sound.

Is the Right channel A and B bad? Before I take this back to BB, can anyone think of something I haven't tried yet?