If you plan to get new maps for your Garmin, make sure you use the update feature at the Garmin site rather than purchasing the maps individually. You will need to register your Garmin device first. I made the mistake of buying a new 2011 City Navigator NT Map thinking it was the right one. Garmin was kind enough to reimburse me and directed me to the update page.
Works like a charm.
Word of Warning-Nuvi 255W Users
