I own a recently purchased 2005 American Tradition. I've just discovered that all exterior running lights are inoperative. I do have operable headlights and brake lights. Knowing that all the running lights are out leads me to believe that the problem lies in an area that is common to all these lights. I've checked the fuse and it's okay. I also pulled part of the instrument panel to look at the light switch, which is a 3-way rocker switch, which outwardly looked to be all right. I don't have the know how to trouble shoot the switch any further. Other than the fuse and switch, is there anywhere else I should look before I have to take my coach in to a service center?