Well, we haven't documented the movement in pictures. Frankly, it isn't on the top of my mind all the time.
It looks like a large grey spot with a halo around it. Funny thing is part of the circle can be at the top of the screen while the other part of the circle can be at the bottom of the screen. OR the circle can be whole and in a random part of the right half of the screen.
No kidding this is the oddest thing I've ever seen.