Went out today, twice. Never saw a single fish or bait ball all day. Still caught fish, but never saw a single return. When I first fired it up, I only had three screens to scroll through. Shut it off and restarted it, and had all my screens back. Just got off the lake, and still not showing any fish returns at all. Reset to factory defaults, and still nothing. Anyone ever have anything like that happen?

I had tried some different settings last time out, and it was working better than it ever had since I have owned it. Then today, nothing.