I'm currently on my second 211 reciever that has some serious sounds issues. Both units were refurbs. All of a sudden out of left field I get this weird echo effect. All audio sounds possessed or something. When I reset the receiver, it goes away until it decides to come back. I've swapped out my HDMI cable and its the same story. Has anyone else encountered this? I've never had a problem with a new box. These refurbs flat out suck. I'm on my second 722 as well for different reasons and thats started having issues. I remember when the refurbs looked and worked so well, they might as well of been new. Thanks in advance.