The last few times out my Lowrance HDS5 Lake Insight was acting up. It wouldn't shut off. The next day I had to restart it several times to get it working. Saturday I tried restarting it 20 times and it wouldn't start. It would freeze up, start restarting, etc. anyways no go. I talked to Lowrance a few times during the week and they said I had an internal problem and offered an upgrade $$$$. Here we go. More money. My unit is four years old. Nothing lasts anymore. I used my Moore Sub Troll to get my speed on Sat. At least I have an option to go back on. I'll be calling Lowrance tomorrow to set something up. Oh boy.!!