Can't get a downloaded book copied to ADE

[ccarren]

I just downloaded a new version of Adobe Digital Editions.  I also downloaded a book from the library, but when I try to drag & drop it in I get the following Message:  Unable to download Error getting License. License Service Communication Problem  E_ADE

Then I tried to Authorize ADE and got a message You can only authorize this computer with an Adobe ID that hasn't been previously used to authorize any other computer or mobile devices.

Help!  I just want to be able to read the book on my Nook e reader. 

[Nanaky]

Windows:

    Close all applications.
    Press WINDOWS + R.
    In the Open text box, type regedit and then press Enter. The Registry Editor opens.
    In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept
    Remove the Adept Folder.
    In the Confirm Key Delete dialog, click OK.
    Close the Registry Editor.
    Open Adobe Digital Editions and reauthorize..

Macintosh:

    quit Adobe Digital Editions.
    Navigate to /Users//Library/Application Support/Adobe/Digital Editions and drag the activation.dat file to the trash.
    If you are using 10.7, see https://helpx.adobe.com/x-productkb/global/access-hidden-user-library-files.html
    Open Adobe Digital Editions and reauthorize