Often when I am winning a game, my opponent will not move and let the clock run out at the end of the game.  The clock never advances past 00:01 (one second left) and my opponent never moves.  If I leave the game, I lose.  I have left a game open for almost 24 hours and still lose.  Seems to me to me the player is cheating.  Sometimes the game is constantly loosing a connection from the beginning of the game, but this is not the case in these situations.  Game plays out well until I am well on my way to winning and at the end, my opponent just stops playing and the clock never runs out for me to get the win no matter how long I wait.  WHAT IS HAPPENING?