Can't control volume levels in Menu Bar

[kpaulinka]

It's been driving me crazy! I have a MacBook Pro running 10.6.8 and for a while now I can't adjust my volume in the menu bar. I can adjust it within the player itself or in the System Preferences window only... the shortcut keys (F10, 11 & 12) don't work either, even though they are mapped.

 

[Ofraggle]

Ditto:
Same OS. Late 2008 model MBP. it's funny because when i press the f11 and 12, I see the animation but the volume never changes...

Anyone else?

 

[simsaladimbamba]

Does it also happen in another, even temporarily created, user account?