I see now what you are saying..
I tried what you said. I also noticed that when I entered back in with my password, that on any backgammon games I viewed as a guest, I could still see my opponent's next roll.. and ONLY on those games I had viewed as a guest.. interesting..
I, too, thought that the roll was decided when the player clicked on the game... but maybe I just assumed that, because that is the way IYT does it, I believe..