I guess I am being a bit slow. A while back my Navigator IV (Zumo 660) received an update.
From what was installed on the computer, it appears that it has gone from the NT 2019.10 to the NTU 2019.20
Am I going crazy, (or it did not install to the computer as requested) or the maps have switched over to NTU status?
Thanks for any responses, but please don't make any comments on my sanity - I don't have any to begin with!
Best regards
Sleuth