Hi there,
It's the first time I write here.
Thanks to GOG for the excellent service and products.
BTW I've noted that the games that use dosbox for running have the option "aspect=false".
This is not a problem but, with strange resolution monitors like 16/10 or 16/9, in full screen, the games doesn't fill the screen (leaving a blank zone).
Why don't put this option at "aspect=true" by default?

Would you rather that the games be stretched and the contents deformed?
Better to have black bars than deform the image by default, if you prefer the other way around you can surely change the setting yourself.

I have a 16:10 monitor, and the games fill it out. I would also assume that aspect=false would mean "do not take the original aspect ratio into account when stretching to full screen", so that fits. Dunno why it doesn't work on your machine.