"Dennis Pogson" wrote

Bluecharts Atlantic also requires an unlock key, but I have found it to be
totally reliable, with one exception, if I have the same coastal area
loaded
to my GPS which is covered by both Bluecharts and City Select software,
the
City Select maps assume precedence over the Bluecharts, so that sailing
near
the coast, one loses the marine chart.

I experienced a similar thing with my earlier 76 so one thing I tried this
time was unchecking the base map. No difference. This is one reason I like
the data cards. I'm going to put the land maps on one card and segregate
the charts on another.

It all points out why working with the GPS a lot before using it for real is
valuable. As a former pilot, I know there are a lot of pilots who hit
things or lost control while trying to figure out why the GPS was doing
something unexpected.

The other weirdness I was experiencing was having the "REF" marker for
distance measuring come on and remain stubbornly in the middle of the
display every time I paged to the map.
The location marker would then move off the screen. Clicking "Stop
Measuring" would fix it but it would start again as soon as I paged to
something other than the map and back. I went through the manual and every
setting and couldn't find anything that seemed to address the behavior. I
finally clicked "Restore Defaults" and everything has been fine since. I
can't find anything that will reproduce this behavior so the system
evidently can get accidently switched into an odd mode. Imagine this
happeing when you are sick, bone tired, scared, and making a tight harbor
entrance.

--
Roger Long