I have a Helix 10 GN2 ver1.4 software and encrypted 2GB card with chart select map loaded on it. But when I insert it into the Helix and go to HB Charts Tab I don't have the option "Overlay Options"? I'm I missing something? Same 2GB card has all my waypoints, and I also have a lakemaster card in the other slot. I tried removing the lakemaster card and only the 2GB card and still nothing.