Thanks everyone. I appreciate everyone trying to help me, but let's cool down the tempers a little.

I have a variety of Mini USB cables and the first one I tried works fine. I'll try a few others.

I created both my morning commute and afternoon commute in RWGPS, and saved them as GPX files. I could not choose to save on the eTrex, so I saved to my computer and copied them into the GPX folder on the Garmin. One shows up in Routes; the other in Tracks. Not really sure why.

I need to play around with it more, but I'll see if I can try it here in the next two weeks and figure out how to use it on tour.