Hello, I'm new here so thanks in advance to anyone that can help. I have a Humminbird Helix 5 DI-GPS and I recently bought the Navionics+ Canada card. When I first used it I had maps but no depth charts, admittedly I may have had a setting wrong. anyway, I updated the card thinking that was the problem and now it just says "loading charts" on the fishfinder. I left it for about 2 hours but still nothing. I can't seem to download just the lakes I want on the installer, the download option doesn't appear. Any ideas?