oh, I've just noticed that it indeed is set to fullscreen, but the resolution of the "window" is set to something like 800x600 (hence the reason why I assumed it was in windowed mode..) Is there an option to somehow change the resolution?
No, it is hardcoded at 1024 X 768, though that should still fill the entire screen (or at least the 4X3 aspect ratio of the screen). If ever I want to address that I have to start over from scratch, and that'll be a job for Caverns III if that ever comes about
