With reference to this post [Only registered and activated users can see links. ] :
For example verifying to address and city for the letter "P" will stop the list Porcivalle (TR) [Italy,of course].
So looking Pordenone (PN) is not found.
Both the 250W on 1440.
I tried on nuvi 1440 for Pordenone (searching for city or address full) and now works fine Also the JV,works fine.
This release map with ITA&GRE.
But I do not know if there are other problems with other particular addresses.