I've had a squeezebox duet for a few months now. The music that had been ripped prior to installing the squeezecenter has played fine (wma, wav). I registered for dbpoweramp and ripped a cd using flac. I re-scanned the library, but these 'flac' songs won't play. The squeezecenter shows that it is playing, but no sound.

What am I doing wrong that these aren't able to be heard? Any suggestions would be greatly appreciated. And please dumb it down a bit for me--trying, but failing to keep up with new technology.