When I was downloading my books from my local library on my Asus PC I was not having any problems.
But now I'am using a MacBook Air (Apple). And I have two problems.
FIRST PROBLEM: When the book is under reservation I'am not getting an Email advising me that my book is available and ready for download. I have contacted my local library and according to them everything is OK. I'am using a KOBO. My wife has an old Sony Reader and she is getting her Email from the local library on the Asus PC without problems.
SECOND PROBLEM: In my KOBO library on the MacBook Air. I have Ghost Images (like a cloud) of old books that I have read. I'am been told that this is created Adobe. And even if I delete them they are still getting back when I'am re-opening my Adobe digital edition.