The maps were out of date, I was driving along some lovely roads that weren't on the GPS, same happened in Lanzarote in January. Another weird thing it offered me a better route, little triangle appears on the screen, I was 150 miles and 2 1/2 hours from Le Havre, new route came up as 182 miles and 4 hours!!
Just done my 2620 with V9, mine came free with a new unit but you can buy it and down load the info.
Make sure you're unit is registered with Garmin otherwise you will not be able to update, I think your has the hard drive like mine, takes about an hour to overwrite everthing, been out today to try it and everthing spot on.