Thanks, that has helped, though I don't think its quite the solution, I can now at least see the routes on my GPS (still a lot of silly little flag and mountain icons along the route).
What I am looking to do, I think is called "simplifying" the route. I read somewhere that the Basecamp software can do it, but I can't figure out where you set that up.
Well, don't normally use BaseCamp, but here is the solution.
Load your track into BaseCamp and select it. May help to have the track properties window open, just so you can see how many points are in the current track.
Next, go to the Edit menu (or right-click the track in the library sidebar), then select Advanced, then Filter Selected Track.
From the Filter Track window, leave the filter at Entire Track. Then select Maximum Points in the filter by options. Then, simply enter the maximum number of points you want to have in the track (the number of points will be something less than the number you enter).
After the track is filtered, simply save (Export) the updated track. Doing this will update your original .gpx or .gdb file. If you don't export it, the changes only show up in the BaseCamp library file, not the original .gpx or .gdb track file.
