You can also press F11 to toggle fullscreen
Oh really? I didn't know that. I'll give that a try. I was able to get the window to fit on the screen by slightly lowering the Scale in Display settings.
Yup, F11 works like a charm. Thanx. Again, it's a really great game. H.E.R.O. is one of my favorite 2600 games of all time and this adds to it.
Thank you!