When authorizing Adobe Digital Editions on Mac OS X, I receive error "E_AUTH_BAD_DEVICE_KEY."

I am trinyg to authorize my computer with Adode Digital Editions, I enter my valid AdobeID and Password and get the following: E_AUTH_BAD_DEVICE_KEY.

I have tried this solution, Error "E_AUTH_BAD_DEVICE_KEY" | Digital Editions | Mac OS X but there is no key entry in my keychain as described in this thread.

Any suggestions?

thanx