Hey, I purchased my rMPB today from the apple store, it looks great and everything, but I have a problem. I am not sure if this problem is exclusive to the rMPB, but whenever I am required to enter my apple ID and password (when I downloaded Adobe flash player for instance), it won't accept the details that I enter. There isn't even an info box that comes up to tell me that my details are incorrect, the box just shakes. Anyone got any ideas? Thanks for any help in advance.