I have Pandigital model R90L200 and I can't get my computer to recognize it so that I can transfer borrowed library epub books from ADE to the tablet. ADE doesn't recognize the tablet either. I thought maybe I could drag the book directly to the tablet but The hardware icon on the taskbar shows the connection but when I click on My Computer it doesn't show up. What am I not doing that I should be? Thanks for any help anyone can provide.