Confusion with Adobe password and KOBO password

I'm having a problem trying to access eBooks on my KOBO Glo, after loading  with Adobe DRM processing.

I've tried the suggested solutions from the Adobe Support Community, but nothing has worked.

I'm running ADE 3.0 now; 4.5 didn't work either.

After loading an ebook using ADE, I get "eReader not authorized to open this book".

My KOBO has a KOBO password and an Adobe password. Is this valid?

I use the Adobe password when authorize/deauthorize the PC, the KOBO unit , ebooks, etc.

Any suggestions appreciated.