master baiter

I installed a new X4 on my boat last week. Took it out for the first time but left the probe at home because I only planned on using boards. Unit powers on and asks for me to scroll through surface temp, speed, then down temp and speed then turns itself off. I have called the company and was told that since I have a 1997 Mercury on my boat that it is triggering the "internal breaker" on the LCD due to an open internal ground in the engine. First of all, the folks at Fishhawk are a...