WMP will no longer let me move the volume silder

[Clairvoyant]

as title I move the slider but as soon as I take my finger off the mouse button it goes right back to 0. It was working yesterday. and sound works in other apps.

Any clues.

 

[V4NT0M]

WMP11? and what version of windows?

 

[Clairvoyant]

WMP11 & vista 64