Nook HD Tablet doesn't come up on Calibre
Does anyone know how to fix this issue? When I plug in the tablet to my laptop and open calibre, I don't see a Nook icon show up and I can't see which books are on my Nook HD from Calibre. I have some files that need book covers and I was going to do it on Calibre but I am not sure how that will work if Calibre doesn't seem to recognize the Nook HD. Any suggestions?