Hello People, i currently have a RCA RT2250 receiver hooked up with the speakers it came with. Problem is, i do not know how to get my rear speakers working. The instruction manual says i should simply be able to scroll through the surround mode options and get to Dolby Digital 5.1 from there. But this does not work. My speakers are currently set up through a speaker selector (just an FYI if people may deduce a problem from knowing this.) but when i click the Test button for the speakers all of the speakers produce a test noise. This leads me to believe that the speaker selector is not the problem. Can someone help me out? I've had this system for a few years and haven't once gotten the 5.1 to work. If someone knows anything about this system, help would be greatly appreciated. I would love to be able to watch my TV and DVDs in 5.1 surround. the manual can be found here for reference. http://support.radioshack.com/suppor...oc61/61791.pdf thanks a lot.