Built-in audio output gone from Sound System Preferences

Discussion in 'Apple' started by cbnewman, Sep 25, 2007.

  1. cbnewman

    cbnewman Guest


    I have a Mac Book Pro running 10.4.10. The option to select the Built-
    In (Aggregated) Output is gone from my Sound System Preferences panel.
    When I plug in headphones, they work fine.

    Any idea how I might go about troubleshooting or fixing this problem?
    cbnewman, Sep 25, 2007
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