Check your version of the game (look on the menu page). If it's not v1.01, you need to update your game. It's important to get the update from the same site where you purchased the game or your reg code will no longer work. The easiest way to update your game is to download the trial and install it right over your current game. If you want to back up your games first (to be safe), you can find their names and location in this post.