Hey everyone !

I've been playing through Bioshock for 10 hours without a hitch. But all of a sudden every time I launch the game, it lauches in windowed with nothing but white. Main menu music and sound when pressing keys tells me that it does register input but it just doesn't display anything.

Is anybody aware of this bug and how to fix it ?

Thanks y'all :)

Edit : Running this on Windows 8.1