Super Puzzle Platformer Deluxe

Zobrazit statistiky:
Verdant "Glasses Kitty" Brave 15. pro. 2013 v 6.17 odp.
Can't switch to windowed mode. How fix?
So I just bought this game a few days ago and switched to fullscreen out of curiosity. Now the game will not allow me to switch back to windowed.

Kind of annoying. How do I fix?