@Old Scaley, how do you put the Garmin into demo mode. Couldn’t see an option to do it and, of course, the manual is next to useless. Also, once you do that, can you still add marks etc that will stay there. I mean, they don’t just get added to demo do they and then disappear next time you turn it on.
I think I may have already overwritten my $400 G3 Vision card with the standard G3 maps from the units internal memory. If so, I am going to be very angry and Garmin better watch out. I inserted the card and a pop up appeared asking if I wanted to copy the maps. So I did. After it finished I realised it seems to be saying it copied from the sounder to the card. Why would that even be an option! Surely a $400 card should be write protected!