worked fine, Windows 8 and Kobo reader. Library boodocument is protected by Adobe DRM and is not authorixed ks worked well. nothing chnage don my end, now when i try and read the book on the Kobo it say, "oops, this

worked fine, Windows 8 and Kobo reader. Library books worked well. nothing changed on my end, now when i try and read the book on the Kobo it say, "oops, this document is protected by Adobe DRM and is not authorized...."