Basecamp to Nuvi 2555LMT Route Issue

Former Member
Former Member
New Nuvi 2555LMT, map and software updated to latest revision. Windows XP pro system. How do I transfer a route from Basecamp to the 2555LMT? Do I need a Micro SD card?

I have exported a route by saving it as a ".gpx" file then copied it to the "GPX" folder in the Nuvi 2555. I can then load the route but the Nuvi recalulates the route rather than follow the route that was transfered and was shown in Basecamp.

Your help will be greatly appreciated.
John