Hi jameskay, are you still able to play through the game fine? If you can't see anything outside of the puzzle area, then you will be only missing the puzzle titles and not much else.
Yes, it plays fine other than the cropping of the screen. I mostly just wanted to let you know. I suspect it's a high dpi thing, so other people will probably have the same issue, and it might be more and more common as high dpi displays become more common. The most awkward thing was that I couldn't see the "A" and "D" so figuring out those controls was a bit of trial and error.