I recently purchased the Fishing Hot Spots Pro sd card for the Garmin 73sv and can't figure out how to load it. It came with no instructions, can't find anything searching the internet, and the website is no help. When I insert the micro SD card into the garmin, it gives me several options one of them being merge from the card. When I try to select that, it says no files found. I looked at the sd card on my desktop, and there are files on it, just none with the file extension that the garmin is looking for. It also gave me the option to update the system, so I did that. It went through the update motions and restarted the garmin. When i went to the charts, it had a new option for fishing charts. Success! Nope! I chose it and it just had the lakes with blue edges (shallow water). When I backed out, the option for fishing charts was gone. If I restart the garmin, the fishing charts option is there until I open it and back out of it. When I go to the Fishing Hot Spots support, it sends me to the Garmin website. Any help would be appreciated before I lose my mind!