Ok, I have a GPSMAP 188c gps sounder that started giving me fits on our Lake Powell trip last spring. The screen would just freeze up and nothing would advance ( like the depth or navigation progress ) until I powered the unit down and then restarted it. It would then work Ok for a short period of time and then the same thing would happen again. I have upgraded to a new Lowrance Elite 7 HDI unit so if anyone has any use for the old Garmin e-mail or PM me and I will send it to you. Bracket and Gps antenna come with it. I am keeping the transducer for my backup sonar.
Clint
Clint