I've got a 597ci HD DI Combo, I just purchased an older navonics+ card which seems to work fine when the card is "installed" in the hb card reader slot, but it does not give me an "upload" option to put the software on the unit. Since this unit only has 1 card reader slot I can't run a separate card to save waypoints. Am I missing doing something when I go to install the info???

