I have a great suggestion for the game!! A lot of players, myself included, will have to refresh the game by getting off of it completely and then letting load it up again in order to see co-op messages. When I'm playing the game sometimes, I just won't get co-op messages at all unless I do the above steps. This can become very frustrating when you have to do this several times in a row to see messages from your co-op. I know for a fact there are hundreds of players out there that also experience this. My suggestion to the Zynga team is to create a refresh button specifically for the co-op chat. This will allow the players to refresh the chat when they are not receiving messages instead of refreshing the entire game. It's just an idea that I think will greatly benefit the players in the game.