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How to fix No Entry sign on Mac - Factory reset

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Log in. For a better experience, please enable JavaScript in your browser before proceeding. Lost audio: Thread starter jumu Start date Jan 13, Hello, This is my first post as I've joined this because I desperately need some help from some experts. I went to play some music from my mac os x - v.

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I use the internal speakers and have nothing else plugged in. I've read other posts and followed their suggestions, so far I've tried: I've been to Activity Monitor and 'Quit' coreaudio and again no change.


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In System Preferences - 'Output' has no option to switch to internal speakers. Only device for sound output is 'Name: Optical digital-out port' Does anyone else have any other suggestions it would be greatly appreciated.

Apple Macbook Pro not starting Up

Many thanks Jumu. Cheryl Rosie Moderator Staff member. Jan 13, Check Universal Access. You might have turned it on, disabling sound.