I tried purchasing an iBook from my iPad, and everything seemed to be going fine until I tried downloading the thing. It just sat in the bookshelf for 2 hours, not downloading. I have a working broadband connection (99Mbps). I then tried to get it on my Mac, through iTunes (latest version). When I went to the purchased page and tried downloading it, a message popped up: You have already purchased this item. It tells me to Check for Available Downloads, but that lovely option doesn't do jack *****. By now I've wasted 2 hours and 30 minutes of my life trying to download a book, and every single one of my computers and iOS devices are unable to do this. Help?