That's a shame you couldn't get straightened out. I've sent back H/B, Lowrance and Garmin units at different times. Some with big problems, and some with little problems. If you are buying another product, check out BOE marine. I buy all my electronics there. You will get someone much more knowledgeable than at BP, Cabelas etc. Stuff missing in the box when purchased, really sets off an alarm when I buy something.