I felt your pain just reading these posts. I too brought a 2nd hand GPSr a Garmin Etrex 20x. The pain of getting the caches loaded was horrific and I too was wondering what I had done by buying a GPSr unit. I asked questions on this forum too but what helped most was watching a youtube video on loading caches. I also thought that once it was in the gpx file on the laptop that it would transfer to the unit when plugged in (boy am I a newbie to this stuff), once in gpx file I need to right click then send to garmin. You will love your unit once you figure it out. I have only managed to use mine to find one cache so far and it was brilliant, tomorrow we are going caching!!!