i have the Navonics Hot maps 2010 card in my GPS/depthfinder. fish mainly at Blackshear and it is awesome - the map shows all the creek channels and every depth change all over the lake. Went to eufaula this past Sat for the first time and put in at Rood creek. Right off the bat i noticed that there were no contour lines at all except for the main river channel. Anyone else have this problem or is there something i am not doing to get the contour lines to show.(i didnt know if i had changed a setting or something and didnt realize it.) HB 788ci combo.