I'm having a difficult time tracking this problem down. Library, B/N and Adobe are no help. I'm many hours into this so hoping someone out there can help. In borrowing a book from my local library I get it download to windows (on my PC), from windows to ADE. Transfering from ADE to my device (Nook) is the problem. I don't get the pop up window for authorization. No authorization=no icon to drag book to. I've gone over many forum postings but found nothing. If anybody out there can help, I'll give you my first born son.