Dorkfishie, recently, we released an update where it will now show you which buttons to press. If in the past, you and some players had difficulties, now there will be no such difficulties. Play with pleasure!
Look, I take it you either have a bug or you're closing the game at the wrong time. I'm leaning towards the former. You should not have waited at all, there are two dialogues that last 1-2 minutes. Try downloading a new version. If after 5 minutes, this window does not close automatically or you have a black screen all the time, write again.