Also, does anyone have the CA Topo loaded on their Vista HcX? I tried putting the gmapsupp img file on a blank micro SD card and it does not appear on the unit, even though it is in the garmin folder on the card.
Is there a way to use that map in conjunction with other maps? I can't load it to Mapsource using Map set Toolkit because my POS computer can't compile that much data. It keeps blowing up every time I try (not enough memory). What I'd like to do is be able to chop up the CA topo into segments, but I can't even open the img file alone because it is too big (POS computer again...).