Audio sounds damaged. I have tried with both built in and external speakers.

Audio sounds damaged. I have tried with both built in and external speakers. I think its a problem with a driver or something.

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

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      Bus Speed:          1.07 GHz
      Boot ROM Version:          MB51.007D.B03
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      Queue Depth:          32
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      Detachable Drive:          No
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      Partition Map Type:          GPT (GUID Partition Table)
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      File System:          NTFS
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