Line twitter or judder.jwren said:
The HR10-250 has it too.
Most of the time it should be hardly noticeable. It's made worse, though, if you a) have a 720p native res. display and you are feeding it an interlaced signal (I still notice it slightly feeding a 720p projector a 720p signal b)have your box hooked up via component (sideband interference makes it a little worse).
I know you seem to be having a lot of image quality issues as of late. I hope you are able to figure out some sort of solution for all your problems.