Thanks for reply. In turning CHIRP off I had read the Networking Manual and I called Humminbird. Their rep had me go to the Network tab of the Menu and un-check the boxes for CHIRP Down and side imaging. I will turn them back on and go to Configuration in the Setup tab as you said. I was wondering about the 2D, and you have answered that. Can't thank you enough for all of your help. I will post back with results when I get boat back in the water--might be a few days (rain, rain and more rain).