purchased Garmin Blue chart Version 6.5 for navigation on Lake Superior.
Errors of up to 600 feet in several areas. Updates have not corrected it
When zoomed in on chart can see where the various charts were not interlaced
or overlapped properly. Garmin people have ignored fixing the software and
offer no solution. Previous versions of the software did not have the
problem

anyone else have a problem with their sofware in other areas?