I haven't had this problem before the other day. I am reading a book on my Nook, and knew I would be leaving the house and thought I would continue reading the book on my Droid 2. I clicked on the book to download and I keep on getting a Preorder error, and it won't download. This book is not a preorder and has already been downloaded to my library, any ideas how to get rid of this error? I have a Nook Tablet, and a Droid 2.2.