I have an Eagle Fish Mark 500c that is acting up. When I first connect the unit it works fine, until I shut it off. When I turn the power off, the unit will suddenly turn itself back on, the display screen will be flashing and it will continuosly beep. The only way to stop this is to unplug it. It then must remain unplugged for at least 15 minutes before I can plug it back in to get it to work properly again, but when I turn it off it goes through this problem again. I have this unit connected to my MK powerdrive AP/CP/US2. I tried a hard reset according to the Eagle website. This did not work. All my connections are tight.
Anyone have any advice?

