Comcast has a newer box in our area a 3400 so they tell me I will have to see if it is worth switching to. Just now everything works well and I have wasted so much time already. I know this should not happen and some still want to blame the receiver. But HDMI has been an issue since being introduced and there are a lot of issues with a lot of receivers, pre pros and source units. Some people never have a problem. this was my first so called major issue.