Call 911! Seriously though - was excited to see this plug-in. Installed it and got the message of needing an API. Thought I would explore more - clicked the button to see if it would give me a hint where to get it (of course I came here - after this - because I was just trying a guess) ... but the window for the API entry has opened and stays in the upper left hand side of Calibre - without the close button showing - and I can't get rid of it!
