I had my problem-free 522 swapped out a few days ago for a 622 and replaced the Super Dish with a Dish 1000. I don't know if my 622 is buggy or not.
Software version: 356
Mode bug occurred in: Dual
Dish Setup: Dish 1000 for 110/119/129
If I connect my 622 via HDMI to LCD tv, Samsung...