Grab your own free version of Dalewj’s new book (Diaries of Afterworld)!
Ah! I get it. Just matched the game resolution to my screen resolution (1680x1050) and got the full screen option. Unfortunately, I no longer have an option to play in windows mode, but at this point, I'll take what I can get.Thanks everyone.
When it fixes itself it's great and when it doesn't I double-click the window's title bar (where it says "AfterWorld Survival [v. C211]") twice (call it a quadruple-click if you like) and everything is fixed. It only takes a second to do and you get the best of both worlds - a full-screen game in a window.