Update symbol in database (File>Load GPX/LOC)
There is a possible issue when load GPX files that contain the <symbol> element. That is, you may have set up all your symbols in the database just the way you want them, but then if you load a GPX file from Geocaching.com they will all get updated with "Geocache" or "Geocache Found" (the only two symbols provided in the GPX files from gc.com). To prevent this from happening, uncheck this box to disable the updating of symbols from the incoming GPX file.