I dowloaded the adobe digital edditons software, got the Setup Assistant screen and also the activiation screen. Then downloaded a book from my local library. All this succefully. The problem is when I conncet my nook to my computer I don't get the prompt to authorize. The system shows it is already authorized. Therefore cannot dowload the book into my Nook.
This may be a sequencing problem. Sometimes, ADE loses track of ereaders or
can't find them if they're plugged in after ADE starts. Make sure that your
Nook is recoginzed as a USB device before you open ADE. If ADE recognizes
that the Nook is attached, it will display its name in the left hand panel
of Library view. Then, all you have to do is drag and drop the book from
ADE onto the Nook.
Regarding your problem follow the instructions as given below.
1) Plugin your Reader to your computer.
5) There you will find a new drive created similar to C or D drive under My computer.
6) Open the Readers Drive and you will find a folder with name adobe.digital.editions.
7) Delete this folder and plug off and re plug in the Reader.
8) Authorize Reader.
Type "regedit" in the box and hit enter.
Locate the following key HKEY_CURRENT_USER>Software>Adobe>Adept
Right click on it and select Delete.
Now connect your Reader and launch Digital Editions.
I hope this will help you