890 err from Dish Network when pay per view movie ordered? Samsung 630 LCD TV hooked up with HDMI cable to Dish 612 receiver. What is the problem?

I just got a call from a DirecTV commercial dealer who said he is having a lot of trouble with audio delay on Pro:Idiom programming. He has a large enough customer base that I have to consider his judgement that the audio delay problem his is observing on his Pro:Idiom systems is more...