I am 92% finished with the game. I can move around in the Leaky Caldron, I can continue to free play or replay any of the stories and I can free play in Hogwarts. However, every time I attempt to enter Diagon Alley from the Leaky Caldron, my Wii puts off a high pitched noise and the screen goes black. No matter how many times I reboot, it will not let me get into Diagon Alley. Any ideas?