It seems you're using the 'non-unicode' EU [Only registered and activated users can see links. ], i'd suggest a switch to the one that Garmin issues and recommends for all 3xxx series which is the Unicode map: [Only registered and activated users can see links. ]. You can get all the extra files for your 3490 which now uses different ASR files etc to when it was a 3790. The map coverage is the same for EU and EUU and the hi-res split-screen fiile D3048120A.JCV is available for it.