Thanks for the feedback. I think my N7 aquired some kind bug. When I first got it, it loaded normally. Later, after much practice with the app whilst trying to learn it, I got a black screen. When I shut the app down and restarted all the downloads were gone. It never worked correctly after that. I uninstalled and reinstalled the app several times. After that, once in a while I would get a chart download slowly, but mostly it would just stall. I found other apps where it would stall as well. I took it back today for a refund Maybe I'll go back and give it another try with a new one. Or maybe I'll get a Samsung Tab 8. That extra inch gives a whole lot more screen.