Hi Folks, new Garmin user here so trying to get my head around things. Just updated to the 9.73 software, disconnected form the PC and hit install on the device. It seems to get to 100% and then restarts, where it has been stuck on the black garmin screen for about 30 minutes, saying "loader loading". Is this normal after an update and I am being impatient, or is there something else I should do.