OK, I read that three or four times already, UN1. The part I'm having trouble with is aligning the grid with the terain features in the greyscale .jpg. In other words, making a large city at the forks of the river where they conjoin to form the one river. (Allegheny R. comes in from the WNW and the Mononghela R. comes in from the SSE forming the Ohio R.) I think I figured out how to re-configure the .bmp file but, I can't get it matched to where the metro Pittsburgh area is. I somehow need to overlay a transparency of the config.bmp over the greyscale .jpg in order to get the proper grid co-ordinates. ooOOOOooorr, is it easier to start fresh and construct my own map from the USGS topo map?