Thanks for the info,
I'm reasonably confident that it's issolated to the bulbs, when I bought the car in Februrary it was just the heater controls, and headlight switch that weren't illuminated. Unforutnately I pulled the dash out to change a bulb, which finished off the fog light switch, and has left the rear window switch very dim.
Guess i'll have to have another go at the heater controls, perhpas I'll source a second one first as surly I'll suceed with one.
Had anybody reading this got a spare MFA vacuum sensor that plugs into the back of 160 mph single plug dashboards. A mokey has managed to destroy mine and snap the feed that the pipe attaches to