You can see the solution on that same screenshot. Make a sliver of the subsequent button visible. Hard to do with all the variable resolutions, but theyre smart people, im sure they can figure it out.
Or, and hear me out on this, they could have a widget off to the right that signals to the user when content could be scrolled down. Heck, you could even get _really_ crazy and have it display _where you are_ within the scroll content.
On second through, nah, the world isn't ready for that kind of idea.
