Interior Lights Suddenly Quit???

My Interior Lights Suddenly Quit The Other Day. I Got Out Of The Car And They Were Fine A Little Later No Lights?

The Fuse Is Good, The Dimmer Switch Etc. All Have Been Checked???

Any Ideas?

all of the lights? what year riviera is it?

The Car Is A "95".
The Dash Board Lights Etc. All Work Fine.
None Of The Overhead Or The Large Lights On The Doors Work?
They Don't Work By Their Individual Buttons Nor When You Open The Door Or Operate The Override "lights" Switch.

Thanks For Responding.

sounds like a fuse problem or a short somewhere but im jus guessing