I have a fullhd monitor, and using the old version of kodp i get a small, SMALL image in the middle of the screen. Does it happen the same with this gog version?

The base resolution is pretty small, 800x600 or 640x480, I'm not sure.
But for me, it stretches to fill the 1920x1200 screen and still looks real nice (although I do have black borders in the sides).

It's more to do with how the graphics card/monitor settings handle the scaling. There are options for that somewhere (ati/nvidia control center).

hmmm, it doesn't stretch for me either, I run it at 640x480, lol

I guess it is a question of some gpu settings, eh

GoG made their version force the game to run in full screen 640x480 res, so no compared to the original game disk version you will not get a very small screen to play in, it should default to full screen.

My nVidia card is configured not to stretch images out of proportion (I prefer black borders on the side than distorted images) and still it does stretch when playing KoDP... How did you do it?

I use to have Nvidia, and this always gave me a problem at the time. Since I dislike the stretching, it was quite a nuisance.

Are there any options to create a custom resolution? That's how I use to do it, I'd create custom resolutions to solve the stretching, and put black bars on the sides to create the correct aspect ratio the games were in. Always worked like a charm. If you can, try to crate a custom resolution the game is in.

Your monitor might also have the option to do it too. My monitor I have has options built in to do that, maybe your monitor does too.

Anyway, just some ideas.

I have a radeon a this time, but there it's "enable GPU scaling" and "maintain aspect ratio" both all crossed up.

no the GOG version on Windows 7 has the property "run in 600 by 400 mode" or whatever and it stretches the game to full screen. however it doesn't look bad at all stretched, and if your worried about the aspect ratio check "maintain aspect ratio" in your video card settings.