I have been having issues lately with files not opening on Book Port. These are Book Share Books which have been loaded through the transfer software after having been expanded on my computer. I load the books in to the book port, without issue. Then when I go and try to open the book I get an error that says I O Error opening file. I have about 5 file folders and no more than 5 books in any one file folder. thank you in advance for your help, Dixie