The fog puzzle isn't broken; you just have to turn your sound up all the way to hear it. I had the CC on, but it doesn't really match what sound is currently playing. See the guide I posted already. It should help.
Nice game; wish it had badges. It irks me how the angle of the pen is the opposite of what I'm used to seeing with the typical mouse pointer. Don't know if this bothered anyone else. The animation while dragging annoyed me too. I am really irritable today though, so it could just be that.