I am trying to download a book from Barnes and Noble. YOU, Adobe, are asking for my unlock code. What is it and where do I find it?
I'm not sure if any of it will help, but some discussion on http://forums.adobe.com/message/5996315#5996315
Please report back if you get anywhere so it will help others trying to use B&N books.
The user name is not the B&N username, but the name on the billing address. And the credit card number used for the purchase is the unlock code, not the default user credit card.
Retrieving data ...