Thanks for the info. I was beginning to wonder if mine had a problem or not. I do have the transom transducer and keep the boat on the trailer. I had an older Garmin 320c fishfinder then went to a lowrance x96. After putting a new motor in my boat this spring, I went ahead and got a Gps/finder combo. I will keep and eye out for minor marks and swing back. Again thanks for the info. I'm hoping to get out this week and find some fish