Tutorial Bug - unable to dismiss modal.
Operating System: WinXP
iTunes decided to remind me that it wanted to update during the tutorial. This caused the game to minimize. When I came back to the game, I couldn't click 'next' on the current instruction of the tutorial to dismiss the modal window.
This made it slightly more difficult to complete the tutorial. Although I was able to do so, with some tricky camera movement and my knowledge of game controls from TW3.
I would have reported this through the game, but the 'Next' button for the bug report screen in game never became available (It never got past "collecting data to upload").
I restarted the game and went through the tutorial again without minimizing or alt-tabbing out of the game, and was able to go through clean.