I've been using my ebook on my Iphone. I just downloaded Adobe for the Mac version of it, and it says there is an Error because it has already been opened. How can i get my ebook to my computer?
Hmm... Did you choose "Campus eBookstore" as the eBook Vendor when you activated the Adobe Digital Editions software? It's important that you do so. By default, the software chooses "Adobe ID" which would activate the software as a different account than your iPhone.
Please let us know if this helps! If you continue to have trouble, send an email to firstname.lastname@example.org and we can reset your ebook download.