Long story short: I need to redownload the game (from the Humble Bundle) because one of the files is corrupt. Since the game ran fine most of the way through, I'd like to transfer my save to the new, uncorrupted game once I re-download. The only problem is I'm not sure which directory or file(s) I'll need to copy.
UPDATE: It seems that even when I re-download, I still get a corrupted file: in a Music directory, "Murky Depths 2.ogg" comes in corrupted...
FINAL UPDATE: The problem I ran into was that I couldn't get into Slightly Nonsense, despite having all the stars. Gonna make a new thread to take a step back and ask "why?"