This question was asked earlier but the answers didn't resolve the problem for me. I'm using an Acer Aspire netbook and both the Twinsen games are stretched to fit the widescreen format. Anyone know how to force the game into the original 4:3 aspect so the image isn't stretched?

It might depend upon your video drivers?

Which video card and drivers are you using? With that information, someone might be able to tell you how to force the right aspect ratio.

If you can't set this in your video drivers (the option "maintain aspect ratio" usually does not appear when your current resolution fills the whole panel). One possibility is to open "dosboxLBA.conf" and edit the following lines:
fullresolution=1280x800 (or whatever you resolution is)
output=ddraw (or opengl, whichever works best for you)
aspect=true

I tried changing all the settings but game screen is still stretched on my laptop while screen is 4:3 on my desktop.

Makes me suspect my laptop video driver sucks because there's no control for it. I have AMD vision. Anyone have answer?