Originally posted by zebanoouroboros has fixed that problem (with the piece score script), so a script update will also get you up and running.
Are you using firefox w/ Greasemonkey extensions? I had this problem in about 10% of my games at one point (unrelated to draw offers). I disabled greasemonkey (or used IE) and I was able to move.
Originally posted by The pestYou could try the claim draw button and see if that works..If not try offering him a draw and see if he accepts .
In game 4388913, my opponent continue to play the game, even if its clearly a draw. I have a rook and a knight and he has a rook. What can I do about it?