I don't know why this works. I have a Sound Blaster Audigy Se sound card that wasn't working after installing Windows 7. I've been trying for days to fix this problem and finally and mysteriously I got my soundcard to work. I downloaded every driver
from the Creative website to daniel_k's drivers
and still nothing. Anyways, what I did was reinstall Windows 7 which takes no time at all. DO NOT INSTALL ANY UPDATES!!! Again, I don't know why, but I only chose to install the Sound Blaster Audigy update and it worked! The first time I installed windows 7 I installed updates and then tried to install the sound blaster updates and it didnt work. I highly recommend this to everyone!