I have several Garmin GPS's, including an older 64s and a new 65s - they're both registered and will appear on my Garmin Express. I'm repurposing my old 64s for a different use, now for my boat, and I bought the new 65s for camping. I just bought a new map, LakeVueUltraWest, that I want to load on my 64s, but it doesn't show up on GE when that 64s plugged in. However, when I tried and plugged in my 65s, the map shows up, ready to upload. When I bought my map, Garmin didn't ask me which GPS I want it for -- shouldn't I be allowed to choose for myself? I seems Garmin chose for me, choosing wrong! How do I put that map on my 64s? Thanks.