Macbook pro 15 2009 : After last update Mountain Lion my sound device is gone !

So workin great untill I push the update Mountain Lion , after that my sound device gone !
If I boot in BootCamp there I have sound, also I took my laptop to service and they try a lot of things ...... includint resets and boot from external hard drive with Lepoard = working !
Just in my Mountain Lion Update i dont have sound device at all .
So pls do something with your updates before realease to foks like me ! Dont put as to read a lot of forum posts without a solution !
Im very nervous about what you did from last year with OS's including iphone .
SO I need an update or a something to recover that device back in Mountain Lion !
ps : If you contoinuue to do things like you do last year  my love for Apple will transform in a hate .... You know what I mean ! Im not the only one thinking like this in a past one year

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