Same problem as with Sanitarium. The game is super small in the middle of the screen with the rewt being black.

What's weird is the mouse cursor reacts as if it was full screen.

I'm on Win8, does anyone know how to solve this?

Hello FGogS,

You should check the settings of your graphics card for any scaling options. I believe you have a screen with a high resolution and if you start a game with 640x480 it is very small on your screen. Scaling would increase this to the size of your screen.

Thank you, I already finished the game this way, it went okay.

The scaling, I was told, is a serious issue with Windows 8 and they're trying to fix it with 8.1. It has affected quite a few programs for me so far, so I hope it'll work properly one day soon.