My macbook pro sound went off. Help?
I went to listen to a song on itunes and when i go to turn the volume up the volume wont go up and theres a sign under the volume level. its not just itunes and i went to system preferences and the mute box is not even checked but it wont let me click it. whats happeningg? whats wrong??
when i go to system preferences under output the output volume bar wont let me move the volume or check the mute box. its grayed out.
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