I just recently purchased Infinity's beta line of speakers, the beta50s for front channels, and beta10s, for surround channels, and the infinity b12 for a sub. I have them all hooked up to my roommate's avr230 HK receiver (which will hold up until I buy my own receiver). Anyway, I finished hooking them up yesterday and everything worked fine. It was great. Today, I was watching the dodger game, and i decided to have the sound go through my speakers. Now, if I am to understand correctly, if i set it to Dolby Pro Logic, shouldn't that send audio to all the speakers? I know it's not 5.1 surround, but doesn't it just replicate the audio from the front two channels to the rear two? Anyway, I can't get sound to come out of them when watching just tv, do i have a setting wrong on the receiver, or did I hook up the speakers improperly? I have them hooked onto the surround spots on the receiver. Any help would be appreciated.