Just a small thing, would it be possible to have use of the Play Doctor feature give some feedback onscreen when it's busy? Like changing the cursor to the spinning busy indicator? Right now if you press the [Play Doctor] button it just leaves the regular cursor on-screen with no indicator it's busy grinding away at it.
I've also noticed a couple of places where hitting Esc, space or return doesn't dismiss or otherwise handle a dialog box. Esc usually means cancel or dismiss when no selected option has been chosen, return or space usually means accept the default active button. Just a small thing but one that kind of stands out when you're really used to how UI controls are expected to work.