I'm getting really frustrated with this process. I've never added files to my unit other than downloading the England/Ireland maps to a SD card.
I'm currently trying to get a prearranged trip loaded into the unit. I've tried going through Basecamp but it just says it's saved the trip to the unit but doesn't let me select tracks and then when I turn the unit on it won't recognize anything. I've tried loading the gpx files directly to the unit in the gpx folder - didn't work. Tried creating a new folder under gpx in the unit - didn't work. Tried putting the files in the Archive folder on the unit - didn't work. You might see a theme here. So the next assumption is the files are bad. The thing with that is other people have downloaded the same files and say they are working.
I've got the latest software update on the unit but not sure if it could be a firmware issue or how I check/update that.