I am not familar with Magellan but do use a Garmin. My Garmin page has an upload and download icon.

When you download from the GPS to the computer I save it in a different name and also add a date.

Now when I get stuck I visit the Garmin home page for free patches and fixes for my GPS.

Here is Magellan
http://www.magellangps.com/

Or I see they have a chat titled "Asking Maggie"

At the bottom of this page. Ask them ytor question.

http://www.magellangps.com/support/

JW