I recommend that you try going to your live chess settings page at http://www.chess.com/home/livechess_settings.html and then checking the box for "Reset Live Chess windows to the default layout" and then click "save preferences" and then try reconnecting to the Live Chess as this may help to bring the chess board back.
I see the message that i have a game running, but no board shown to play. this has been going on since yesterday (over 24 hours). Curiously I see over 600 players on.. is the problem local to my computer perhaps? or the people are just there... doing nothing!