Hello again Doug, (I'm not certain my reply went the first time........So I'm repeating it here.)
You have gone to a lot of trouble and effort, and I am very grateful for all you have done. It is late Sunday night and I have a lot to absorb, so I'll read it all again tomorrow evening when I return home.
I have a TomTom50 with no 3D mapping, but I have already learned from your helpful notes that the main reason things were not working was because I had not synced my device to my pc. That is now done, and suddenly, all the "My Place" favourites on my device appear on "My Drive" on my pc.
Sadly it doesn't yet seem to work the other way yet, as although I have now added a couple of small OV2 files to my pc they have not synced back and appeared on my device yet. Hence the need for a clear head tomorrow.
Once again, thank you for all the help you have provided so far, and I will certainly not do a reset without talking to you first.
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