Hi all. I need some help regarding downloading caches onto an etrex 20. Can anyone out there can give me step by step to how to properly download caches from geocaching.com onto my etrex 20 and how to find them on that device once it is downloaded?
Background to the question:
My old dinosaur of an etrex that has lasted us all our years of geocaching is starting to have issues. We decided to go to paperless caching and get a new gps. 
Magellan was a disaster. The explorist 310 has, according to the person at magellan, a "defect" that he wants me to copy and send to their software people to figure out. The device is getting returned for a full refund. 
We got the garmin etrex 20 and decided to download caches. It only downloaded one cache that I can find on the etrex geocaching screen, yet if I try to download other caches again, it tells me they are already downloaded. The unhelpful help desk at garmin says it is the fault of the geocaching.com site. Uh huh. That somehow there is something on some cache pages that prevent it from loading. Uh huh. I told them they would lose a lot of customers based on this. 
At least we can manually enter in cache coordinates and get to our destination with the etrex 20 but I would love to know if anyone out there can give me step by step to how to properly download caches from this site onto my etrex 20 and how to find them on that device once it is downloaded.