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The-Pro

macrumors 65816
Dec 2, 2010
1,453
40
Germany
yep yep had the exact same thing. I managed to sort of fix it by downloading and installing Windows vista service pack 1, and then Windows vista service pack 2. Now in order for me to only use headphones i need to disable speakers in the sound prefs, otherwise some sounds go through headphones (when connected) and others through speakers. SO i have sound now its just annoying to have to disable speaker and enable all the time!
hope i could help, also once you have done the above two things, download and install the latest driver, the one u in the link u posted!
 
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