change authorization in DigitalEditions

Hi knowing folks,

running Digital Editions on Windows 7 / 64, I authorized my digital editions using the wrong Adobe ID. Now I'd like to know, how to change the ID for an already authorized D.E.? I already deinstalled the program, cleaned registry, deleted any entry containing 'Digital Edition', reinstalled: always end up with the old, wrong ID being used, thus not allowing reading my ebooks with that edition.

Any clue?

Thanks in advance,

Rainer