Audio/video freezing up on my new genie. It replaced the previous model a few days ago for the same issue. So, needless to say, I don't think it's the receiver. The replacement is an hr44. Any thoughts? I've switched out the hdmi cable with no success. When it first starts happening, the menu screen will turn from a black background to white. The freezing occurs with both live broadcasts and DVR programs. It also occurs on all channels. I've had 3 techs come out to fix it and the only they've done is switched out the receiver with no success.