Whenever i try and put my games into full screen (alt + enter) my screen displays a 'cannot display image' sign. This normally appears when the game is trying to run a game at a higher resolution or refresh rate then my moniter can handle. But i don't think this is the case here.
I used to be able to run them in full screen, but this was some time ago. I haven't used scumm in a while.
I was running on 1.00 but downgraded to 0.13.1 after thinking it was some kind of bug in the new release but it still won't work.