Hello. I'm trying to get my Garmin Drive 5 to display topographic lines while also allowing me to use the City Navigator (and other maps) that comes with the GPS. I would like to use the TYP file to make all of the roads and everything transparent, so that only the topographic lines appear. When I try to make everything in the TYP file transparent except the contour lines themselves, a gray background appears and blocks the view of the other maps on the device. I tried editing the polygon 0x4b, (which I believe is the background polygon or something of that degree,) but nothing happened. I've tried using GMapTools, but that still didn't do anything. It seems that the topographic map has the highest priority to be displayed. Any suggestions?