No playback controls

I just uninstalled MS4 and reinstalled, hoping issues would go away, but if anything it's worse. No playback controls. Doesn't respond to the Esc key, so no way to deselect a note, scroll, playback, or anything. I can work around by closing and reopening the score, but still no playback controls appear. And it still keeps prompting me to install the 4.0.2 update.