The Button to call up the Analysis Board seems to have gone missing during the latest changes to Facebook Chess. It is still there if you log into the same game directly on Chess.com. Also, the Chess.com Friends list has gone from the FB version, along with access to Chess.com messages and the ability to generate a PNG file from an individual archived game.Also, you can only find these forums if you log in via Chess.com too, which probably hasn't helped anyone else trying to log the problem who only plays via FB.