Navigation will work fine initially, but the next time I go to use and I enter in a destination, it just stays on the "calculating route" (or whatever it says) screen. I have to go into Applications - Maps and clear the data there, then restart and it works fine then, but it's a bit of a ball ache because that clears the list of previous destinations. Anyone else having the same problem? It was fine before the update, but I don't know if it's a Froyo issue or an issue with the map update as I updated them both on the same day.