In the past I have created several custom maps from jpgs in Google Earth, saving them as kmz's and transferring them to the custom maps folder on my Oregon 550t, but this time I encountered an error. Everything seems to go fine until I try to view the new custom map on my GPSr. I get a message that "Garmin Custom Maps cannot use progressive jpegs", even though the file is a kmz. Does anybody have an idea what is going on?
Thanks for your help.