Hello.. I'm new to AVS and frankly surround sound all together. I own a VSX-42 reciever and have setup up with a 5.1 speaker system. My problem is I'm not sure if I have my settings correct for best performance. I've used the MCACC feature and have heard sounds from all 6 speakers. I noticed this week (after being hooked up for 2 weeks) that i only had sound coming from front speakers and really nice bass. No matter what I played through the reciever ( DirectTV box, blue ray movie....) that was the only place I have sound coming out. This being my first system, I thought it sounded pretty good..... but I want to hear what it is REALLY suppose to do and with all my components (DirectTV box, dvd/blueray player). Any pointers as to what settings I should tinker with, and if there is a setup that works best for all components without having to switch a bunch of stuff everytime I am playing something different??