I have AMR-70 speakers and SB 5.1 which IS properly configured for the 5.1 setup. For a long time my speakers have been popping when nothing was playing and it was always loud even if the volume was down to right before you turn them off. I just ignored it and turned off my speakers thinking it was a problem with my computer. They had been popping for months. I read the other topic on this issue and discovered it probably wasn't my computer, but the speakers themselves. Just a couple of days ago, my speakers stopped working completely. None of them will make any sound. Occasionally they all come on for a few seconds and then only one works and then it just stops. I discovered that jiggling the power cord and plugging it in only half way will make it work sometimes but that's also a very temporary fix. I just finished testing my speakers with a Walkman and NONE of them worked at any volume level. Polk is a brand I trust so its not like I'll be doing any boycotting or something. What should my next step be in resolving this issue? Thank you for your cooperation in this problem.