My friend just got the invite. He is having a problem with the game not fitting his screen size. while he is on the city screen he can right click and do "Show All" that shows the game resized to match his browser/ screen size. But he cannot do it during the battles. Here is a screenshot he sent me of the battle screen.
Full Size Image ---> here.
He says even during the tutorial the text doesn't fit the dialog boxes and he is unable to click on balloons / callouts / buttons. He says he upgraded Flash / Java and retried but the same thing occurs.