My BMW E46 M3 COUPE 2002 navigation and assist not showing in menu also menu has reverted to a very older looking style with minimal options tv cd radio work fine ! i read somewherer this happaened overnight to an M5 so im assuming the software is currently correct version but another thing i notice is the satnav unit has a flashing power light. everything else woks and is in menu ,tv, cd, radio and set are all that you see on screen with a pail blue background ???? anyone seen this problem or can help pls ???