How can I authorize my computer for ADE after windows recovery usind the same ID as before?

Hi all!

I had some trouble with my computer and had to do a Windows recovery, loosing all my previous settings.

Now, I cannot authorize the newly installed ADE with my Adobe ID. The message I get says, I 'cannot authorize a computer with an ID that has been used to authorize another computer before'... (which is the same computer but before recovery).

Without authorization however, I am not able to copy ebooks to my NOOK...

Anyone an idea?

Thanks! Any advice or thoughts are highly appreciated!!!