I have two library cards, one uses OverDrive and ADE and the other Cloud Library. When I downloaded ADE, it automatically authorized with the Cloud Library credentials. Now I cannot download my ebooks from OverDrive using an Overdrive account or Adobe ID to authorize the computer because it associated the OverDrive ebooks with the Cloud Library account. The error message is that it was fulfilled by another user. When authorized with my Cloud Library account I cannot transfer the ebooks to my ereader. Please let me know how to change this so I can read library books on my ereader.