Thought I would use my Late 66 series one to go out last night. It hasnt been on a night drive for some months. Car started fine but no sidelights or headlights! Indicators and brake lights work. Anything to do with side lights/headlights e.g parking light, headlight flasher nothing happens. My first thought -a fuse must have gone but there is no fuse for the sidelights/headlights. Switches still have a nice postive feel. Car has standard 4 fuse box negative earth RHD cloth covered loom. Any ideas please?