Depth Finder loses bottom when > 150'

[pcasterlin]

So the good news is that I was sent a new CP370 to replace my DSM 300.

After connecting the new CP370, I powered everything up and went to set the transducer as directed by using MENU-> FISHFINDER SETINGS-> TRANSDUCER SETTINGS-> SELECT TRANSDUCER

My Transducer is a B177V but is not listed in the options for Transducers.

The only select-able options are:

B256/M256
B260/M260/SS260
R99/R199
B258
SS270/B264
R209/R299

The MFD is an E120 Classic with the latest software (V5.69); I assume the the CP370 is at the latest too, as it came new from the factory.

A couple of other data points:
- I get a temperature reading of -80.1 (a good bet that the temperature is actually 80.1)
- When I select FREQUENCY CALIBRATION the MFD Reboots.

Any suggestions?