Well with map updates off my sub is shown as a dot untill zooming in, both the Navmap & Attack maps display nothing (as it should), no ships of any type are displayed at any zoom level, the map image you have drawn (posted) shows a circle with merchant data displayed, if map udate is off how do you get that info displayed, as I said my maps are blank!
Edit: I did not edit the menu ini file as I didn't have the nomo.tga file, unless it's part of SH3?