I just bought the 2009 Map update data card for my Garmin Nuvi 660 (it didn't come with any instructions just says plug and play). It says City Navigator North America NT and compatible with the Garmin Nuvi 660 model. I plug the micro card into the provided adapter and then into my Garmin in place of my old card that says Garmin Travel Guide North America on it. It says loading software but then just stops when it gets to the screen that has the Garmin logo and the word Loader above it and stays there indefinitely. What am I doing wrong? I thought this was an update for my maps that are now 2 years old.
Thank you so much for any guidance. The Tech Support line for Garmin is only open until 7pm.