I have a eTrex20 and like it very much but I do have a question. After geocaching and finding several caches and logging them online I delete the ones I didn't find that day but when I do that and want to return later to find them, I cannot log the coordinates from the Geocaching.com site. I get, "do you want to overwrite..." I say yes but the cache is not listed in my GPS. I have to manually enter the coordinate. Any suggestions beside not deleting the the original coordinates?