my volume isnt working help!?

my volume isnt working i have a macbook laptop and when i clikc to raise or lower the volume the volume thing comes up faded with a circle with a line through it under it. i already went to system preferences and it is not letting me change the volume PLEASEE HELP WHAT DO I DO! BEST ANSWER GETS 10 POINTS

1 Answer

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  • Lv 5
    1 decade ago
    Favorite Answer

    It happens to me all the time. Just restart your laptop and everything will work fine (:

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