Calibre does not recognize my Kindle
I just updated to 0.7.14, and now I cannot upload books to my Kindle via Calibre. I have my Kindle connected to my Mac in USB drive mode as usual, but the device does not show up in Calibre. In the new version, there is no graphical representation of the Kindle as there was in previous versions. I don't know how to send the files to the Kindle. Could someone please clue me in?