[Johan K]

I downloaded a random Dominions I map (20nov00L) and gave the create a new map a try. It did indeed crash for me too (usually the bugs are too scared to appear on my computer too). It seems that having a capital very near the upmost pixels of the image will crash the editor. So try removing the color key before doing a 'guess all neighbors'. It is the neighbor guessing that does the crash by the way (it guesses automatically during create a new map).