I have recently purchased a QE49Q7F and although the picture itself is very good, I find it is plagued by terrible motion judder. Fast pans or fast moving end credits cause very pronounced juddering. No amount of tweaking the motion settings (or switching the Auto Motion off) seems to make any difference. Actually, it changes the character of the judder, but doesn't get rid of it. Often, it will suddenly 'jump' at the beginning of a moving sequence, as if it is late to catch up, or has dropped a frame. I had originally bought the UE49MU8000 which had the same problem, and returned it to the retailer to exchange it. I thought that the 50Hz refresh rate was the culprit, and that the 100Hz refresh rate of the Q7F would cure it, but it didn't. Is this problem common with Samsung TVs, and are other brands any better ?