I just got home with my new MacBook Pro 13" base model and downloaded the Mac App Store and I am trying to buy some apps. I am trying to buy Chopper 2 for $.99. When I press the "Buy" button an icon shows up on the top left of the screen which looks like its loading. So I proceeded to wait for this "loading" icon to go away, but it doesnt let me buy the app. And yes I have $10 in my account. Any help with this problem would be appreciated.