Sorry for late, I'm very busy in this days, and flu didn't help me.
So... You know my coding ability is limited (Basic, Pascal, Javascript,
XML, ECMAScript and PHP plus just a something-fu for the GIMP).
My pb with terrain tiles "terrain(0to271).png" is that with the new
experimental tileset I realized for terrain, I have tiles that seems to
have transparent lines at borders and they let me see the water under
them. This happens more often for tiles "terrain(0to271).png", but not
everytime. Should it be a pb of windows version?