I had to do a reinstall of windows 7 recently and now have had to download library access and digital editions. Can't get books to transfer correctly to Nook and can't even open them on the computer in Digital Editions. Keep getting messages that not authorized to open protected book and/or the above message. Have followed instructions to deauthorize and reauthorize. Also get message when I try to open book. "This document is licensed for a different user account."
I am having the same problem with a new computer. I only have one Adobe ID so I don't know how it could be licensed for a different user. I just spent about 20 minutes being transferred with Adobe Chat to two different people who took forever to respond and asked me questions I'd already answered, only to have the second person tell me "Unfortunately, Adobe Digital Editions is not supported on chat." Never mind that it was ONE OF THE DROPDOWN SELECTIONS! Now I know why I should download to Amazon and bypass Adobe.