User not activated - MAC - library book help

THANK YOU!!! you have no idea how much this helped.

I have spent about 3 hours on the phone with Barnes and Noble tech support mostly because they didn't speak english, but it was so frustrating! After that they just told me it was adobe and I spent 2 hours on the phone with them!! This saved me, and let me use my nook like I want!!

While I am encouraged to see this solution is working for a lot of people, it does not seem to be working for me.  No matter what order I authorize, activate or register my nook and ADE I still get "user not activated.  I also notice the book in my nook says "unknown author" and when I click on it I get the "user not activated" message.  Maybe the first time (i am having trouble remembering) I used the nook it ask me to activate it, but I do not seem to have gotten that again.  I can authorize my computer with ADE and I can register my nook with B & N and that is it, I never get an activation question.  I have uninstalled and reinstalled ADE both before and after registering my nook.....nothing changes ADE works fine but I cannot get the book into the nook.

Perhaps this means my nook is defective?  What do you think,.....any suggestion would be appreciated.

I am so grateful that I stumbled across this forum and this thread.  I was experiencing the same problem and was very frustrated and confused.  The steps to fix the problem, tweaked for PC "language", worked perfectly.  Thank you so much for taking the time to write about this problem and the solution.

Hi, I'm glad this worked for everyone.

I'm a guy, but this is my wife's account.  I purchased the nook for her for Christmas and spend more time than I would have liked researching the forums for answers.

I have a little bit of a background with Unix from college, which is how I know the commands to type on a Mac.

Pretty pathetic that someone would need this background in order to effectively set up their nook.

Anyway, glad I could help.  I usually just troll around for answers on the internet, but because it took me SOOOO long to get this right and I couldn't find a real answer anywhere, I posted the solution.

Thank you..thank you!!! Got it working now!!!

I've found out through trial and error how to re-authorize the nook on my mac.

1) One thing I noticed is that you have to have the nook plugged into the computer before you launch Adobe Digital Editions.  If you do it the other way around, I've found that it doesn't work.

2) If you keep getting the 'user not activated' message, you need to re-authorize your nook.  So, assuming you have authorized your computer with editions (if not, CMD+SHIFT+D to deauthorize, then just reauthorize via the library menu in editions - you need to do this first), you need to remove some files from your nook in order to re-authorize it.

3) When you plug in your nook, open the 'nook' drive that shows up on your desktop.  Delete the 'Digital Editions' folder from the 'nook' drive.

4) Next, you will need to delete the hidden files that you can't see.  In your Applications folder, there is a folder called 'Utilities.' Open 'Terminal.'

5) At the prompt, type 'cd /Volumes/nook' without the quotes and press return.

6) If you type 'ls -al' and press return, you should see all of the files in the nook folder.  You should see a folder called '.adobe-digital-editions.'  (Yes, it starts with a dot and that's why you can't see it in finder.

7) To delete the folder, type 'rm -fr .adobe-digital-editions' and press return.  Again, without the quotes.

8) Now, type 'exit' and hit return.

9) Relaunch Adobe Digital Editions and you should now be prompted to authorize your nook, which in turn should resolve the user activation error.

10) Drag and drop a book to your nook.  All should work now.

Hope this helps.