I have a nuvi 200 and I live in Jacksonville FL there are many new roads, new highways and I drive a lot and want to update my GPS so I dont come to a lot of dead ends. What do I do?

You can update the maps using either Garmin or other third party maps. The accuracy will depend on how old the mapping data was that is used to create the map. So you want to find out if the map in that area is recently updated. You may also find that a regional map may show the details in some areas where a larger map won't.

To upgrade using Garmin you just go to garmins website

http://www8.garmin.com/updatemaps/

You may find the map update is free or you may update for a fee or get a lifetime update subscription. The gps is hooked up through the usb cable and will download and instal the updates. It's painless (sort of ;-]) and quick.