My macbook pro is stuck on mute and there is no light coming from the headphone jack. any ideas?

my macbook pro is stuck on mute and there is no light coming from the headphone jack. any ideas?

Try a PRAM reset:
http://support.apple.com/kb/HT1379
Ciao.

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    No, not forceful - gentle.
    A PRAM-reset might also help:
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    Stefan

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    - Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so.
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    - Restore to factory settings/new iPod.
    - Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
    Apple Retail Store - Genius Bar
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    Apple - iPod Repair price                  
    A third-party place like the following will replace the jack for less. Google for more.
    iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
    Replace the jack yourself
    iPod Touch Repair – iFixit

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