So, in follow up to my answers .. if we assume at this point, that the
neutral is somehow dead, then how can I go about finding where? At the
electrical box where the fixture is mounted, there are actually about
5 different neutral wires coming together, with a wire nut there. That
neutral wire nut is where the light fixture is being spliced into the
neutral line. All the other devices on that circuit are working just
fine, as best I can tell.


*It is not unusual for other things to work fine when you have a problem.
You could have a loose connection on the load side of a receptacle. Start
opening up outlets on that circuit that are close to the problem switch and
light. Also check that splice of five wires in the ceiling box. Also make
sure all of the connections are tight in your circuit breaker box.

Is this circuit wired using conduit?