I have been playing some solitaire on my computer and a curious thing has happened. I'm starting to get some of the same games, that is all the cards starting out on the same position, much more than what they should appear if it was random. One game seems to pop up every 10 or so games now, and others seem to keep reappearing also. I've played a lot of games on it, over 1,500. I wonder if the way it generates the randomness of the games is getting messed up in it.