In the following savegames http://dl.dropbox.com/u/5057853/pb%20road/Connected%20road.EleSav and http://dl.dropbox.com/u/5057853/pb%20road/Road%202.EleSav I have created a road bewteen 2 cities. And in order to speed things, I have started the roads in the 2 cities. The savegames disply the fact that the road are connected and the map.
But I keep spending 20 golds per turn. It seems that the game hasn't realized that the road between the 2 cities is now functionnal.