MacBook & Vista: No Sound

[Affe]

I have tried everything to fix it. When I try to run the "SigmaTelSetup" it tells me that it is not the correct audio driver for the system. I tried to run the SigmatelXPSetup and that doesn't do anything. I can't find a download of the driver online and I don't know what else to do. There isn't any sound from the speakers or headphone jack. Please don't tell me to search because I have been searching for the last 24 hours and with no luck.

 

[OMAC1A]

Did you use Bootcamp to install Vista? If you did then the drivers should be on the driver disc that you have to burn before installing Vista. I have a Macbook and Vista Business and it runs fine.