ScottMN:
If I was in your position with a fairly new unit under extended warranty,
I'd first call Humminbird and explain the problems to them, and ask them if
you could ship the unit to them for diagnosis/repair.
Also, ask them for a pre-paid mailing label (so it won't cost you
to ship). They will mail that out to you. Let them figure out what is
going on with the unit.
They also may have a newer (workable) software update for the i-pilot.
This is very important:I would include with the unit, a detailed list of problems you are having. I think if a list is included, the technician(s) will look at, test for, and
check off each item on the list.
The only downside, is that you'll be without a unit for at least a week.
The good news is that you'll get back a better unit, and you'll be able to
brag to your buddies of the great experience you had with
Humminbird Customer Service.