Hi,
I have just today swopped my
salon eS97 display with the helm one, as the helm one has exactly the same problem.
I have tried all suggestions from the german raymarine support (factory reset, data master change etc.etc.), but nothing worked so I will send the faulty display to raymarine
europe in the UK for
repair (which is a pain as I am in south
sicily at the moment with the boat
...and the display was on the the
boat from the preowner, so no warranty)
The german support guy told my that this happens sometimes on the eS-series......