I have Oregon 600 with this map and City Navigator Europe, but I seem to not be able to search by address on the City Navigator map any more.
When I search for an address, I have to select Province/State. (which I normally did not have to select when combining City Navigator with Benelux 2010)
When I then just continue, only 'pseudo' address on the NL topo are found, not the true (and preferable) addresses on the City Navigator map...

Anyone can reproduce this?