Faced with the problem of setting your own resolution (widescreen) in Postal 2 (Postal 2 AW), as in GOG version does not say that Postal2.ini edit the Internet... How to solve the problem, since playing 16:4 is not very desirable.

Sorry for the late response.

Here's how you can set your resolution in the .ini file:

Open Postal2.ini file with a text editor, and look for these two lines:

FullscreenViewportX=1024
FullscreenViewportY=768

If you want to play at 1080p 16:9, change the values to =1920, and =1080. It should look something like this:

FullscreenViewportX=1920
FullscreenViewportY=1080

The .ini file should be there. It's located in the Library folder, here's how to access it:

http://www.macworld.com/article/2057221/how-to-view-the-library-folder-in-mavericks.html

Once you're in the Library folder, go to Application Support->Postal 2->System

You might not see the .ini extension on your Mac, so it might only show "Postal2"