Just upgraded from a 942 to a 722 one week ago. Now for the first time, I'm getting pixellation and sound breakup every several seconds on certain stations. Signal strength is in the mid 60's. For example, this occurs regularly on channel HD300, but not on plain 300. And this is happpening on many stations, both HD and non-HD. Other stations play perfectly. I have software V 511. The dish on the roof hasn't changed, just the receiver. I also just got a 222 receiver, which replaced an 811 and it is doing the same thing. Dish says this is a software issue, which will be resolved by the end of this week. Anyone else have this type of issue and should I believe Dish?