I have read across the net that there are a number of people with the same issue, but I am running the technical preview on my older machine (HP dv6000 series) and it uses a Conextant HD Audio 221 driver. I have tried changing the audio quality (none of them work) updating or changing drivers (none of them work) and I have tried restarting the audio services in Windows (did not work). Does anyone have suggestions on getting audio working again? This is annoying. Yes, I know this is why we beta, but this close to launch, it makes me worried about legacy devices (older ones) not working right out of the box with audio well the way that Windows 7 and that beta did.