K, I have both ereader and Isilo downloaded on my X50V , I have downloaded a book before and it worked fine ( read it using Isilo on my device ) so I went to download a new book from ManyBooks.com , but when I go to open or save the book, windows keeps giving me a message that unable to open the file, so when I click on " search internet for appropriate program" it takes me to micorsoft homepage for ereader download, I have already downloaded ereader twice now, what am I missing here????