I came across this discussion topic on Apple's website. I don't use Boot Camp, or have a Mac Pro, so can't verify if it works or not, but seems worth a shot.
I recently used Boot Camp to create and install a Windows 7 partition on my MacPro. Windows runs fine except that I'm not getting any sound. This must be some kind of driver issue but I don't know where to turn. Can anyone help?
I know this must be addressed here somewhere but I did a search and couldn't find a thread on it so I apologize in advance if this is a common question.