You in the uk? Where did you get it updated?
i live in Belgium, i had problems with my device (its hangs like 50% of the time when it starts up).
Because of this problem the dealer where i bought it updated it with the 3.03 (latest soft/firmware incl. maps) firmware. (the f910bt software)
Usually you gotta pay like €220 for it, but because mine wasnt working properly i got it for free