Does anyone know if there is a way to force a refresh of the maps in the MMI? Somehow my unit has failed to install one of the updates and now keeps telling me there is an update, but when I go to apply it fails. I've tried rebooting the MMI (hold the volume dial depressed for about 20 seconds until the unit reboots), but each time it tries to update I get the same error. Ideally I'd like to download the complete set from myAudi and apply via SD, but it just fails to apply. Does anyone know if there is a way to force a complete refresh of the maps from SD or USB?