OK, I've just spent 30 Minutes searching for an answer to this one and I cannot find a definitive solution, so if anyone can help that would be great.

I live in the UK but make frequent trips to Eastern USA for work.

I've done the Diablo and Maps 2008.1 update on my N810. The map for UK/Ireland is in my Internal Memory, and because I wanted to save space, I did a PC download of Eastern-USA map and put it in the /map directory on my External 8GB memory card.

Now when I start Map I get a message saying something like 'Multiple Mapdata. Maps found in Internal and External memory. Using Internal memory card'.

When I try to do File/Maps to try to select the East-USA on the External card, it only shows 'Maps in Device' as UK-Ireland. Under the Available Maps tab all the maps I can download are shown but I don't want to re-download the Eastern -USA one, I already have it on the External Card!

Question is then; How do I tell Map App to use the the External Card stored Eastern-USA map?

Sorry for long post, but I'm trying to be accurate in explaining the issue. Any help appreciated. Ta.