Muted leopard bug?

I’m trying to play some music from iTunes, but I can’t seem to get anything to play. Space bar doesn’t work, play button doesn’t work, nothing. Then I try volume up, down keys, and controls in iTunes and the menu bar, none of which works. Then I open up the Sound preference panel, and lo and behold the mute checkbox is checked, and it’s greyed out so I can’t change its state, even if the volume up and down keys indicate that the audio is not muted!I did have similar problems with muting under Tiger, but don’t think I ever noticed that the mute checkbox was permanently checked. 

5 thoughts on “Muted leopard bug?”

  1. very odd – i have spent the better time of the afternoon with this problem as well – im running a mini mac (intel) yesterday I was watching a movie on the tele and today there is no sound. same problem. mute check box ticked and greyed out. cant see volume control in the status bar either.

  2. did anyone find a solution to this? ive got the same on my mac mini. cant watch tv now…..

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