New to the site need help with 1197 and 1157 interlinked together . Just updated to new updates 6.570 from older version 6.310 I think now my 1197 the navigation map keeps dropping out on my 1197 did not have any problem before latest update 6.570 on both units 1157 seem to work ok.Called huminbird was told to load order version back and try it again ,same problem. Reloaded latest 6.570 still dropping out. Any suggestion? N