this is not my story, but my friend's dad's story. he got a fishfinder a few yearsback and loved it. everywhere he went he marked fish. but he never caught any. finally, after two years of marking a ton of fish but hardly catching any, he took it back to the store. he demanded a refund and said that it was misleading and innacurate. The store manager took a look at it and found something out. for two years the fishfinder had been on demo mode from the display. boy was he mad.:rolleyes: