MapSource software version 6.12.3 as of April 3, 2007

Changes made from version 6.12.2 to 6.12.3:

Fixed an issue transferring routes to the Zumo.
Fixed an issue with the integration of Google Earth and MapSource.
Fixed an issue with the size estimate of selected map sets.

http://www.garmin.com/support/download_details.jsp?id=209 48mb download

Nothing to get excited about