Its not the same car but I had the same problem with my Buick Regal.My problem was the headlight switch.Something to think about anyway.Hard to believe all the bulbs would go out at the same time!
chris, January 2008
Apologies - forgot to state it's for my Ford Mondeo Y Reg (new shape)
K Young, January 2008
More than likely to be just a bulb problem - especially if your car is a Citroen or similar where the bulbs are on all of the time. See if you can access the clock one first - it could be easier to get to.