I'm new to this forum. Sorry if these issues have already been addressed.
In simulator mode (not POS), Chart function works, but sometimes it is really slow to update after zooming.
MOB (man overboard) function will clear but when pwr down and restart, MOB is still active.
Sonar display goes blank intermittantly and the only way to restore is to pwr down and pwr up.
Any thoughts? I'm running software version 6.570