Have you tried to do the map update again ?
It looks like your map update failed first time around.
Which software did you use for the map update ?
Did you get an error during the update ?
Latest software is Garmin Express 220.127.116.11
or you can use GarminMapUpdater.exe version 3.2.2 (probably the most reliable method)
I can only suggest that you try to update again to see what happens, Usually update is reliable.