well it had worked for me for a few days but I left my computer on and went for lunch, it went into hibernate and when I returned and booted it back up, no sound. what a load of crap!!!
i reinstalled hotfix again dont know if that is going to help. going to disable the hybernate as well.
There are two things I have noticed that might be clues.
1) the hotfix seems to work if SP2 has not been installed.
2) the sound doesn't work after the notebook has been off for about an hour. (warm=no sound), (cold=sound), (hot=sound)