Has anyone else had these problems with this unit ( Humminbird 597ci HD DI Combo)

1. electrical interferance
a. put a ground wire from skeg of trolling motor (motor guide 24 volt varible speed trolling motor) to ground wire to trolling motor battery.
b. put rubber around trolling motor housing to isolate transducer from motor housing.
c. put new power cable with interference module from humminbird in.
d. ran seperate power cables from starting battery away from any other cables to597ci HD DI Combo .
2. you cannot run a different depth finder at the same time ( my dash unit is a lowrance) in any depth without having electrical interference (lines on the screen in the 2d mode).
3. course up does not function even if you are traveling over 2 miles an hour.
4.Shallow water (3 feet or less) gives you digital readings of 1 to 600 feet.

I have to put the unit back to factory settings and turn it off and on repeatedly to restore any semblence of workability and this will only work an long as I do not adjust any other settings.

I have tried just about every setting in the unit to try to get this thing to work properly. I am getting very frustrated.

after spending a lot of money for this unit I am extremely dissapointed for a supposedly plug and play depth finder.

at this point I would not recommend this humminbird unit to anyone.