SoundMAX Try This
 

I recently updated my Gateway M320 laptop to Vista which installed an audio
driver that did not work (I had no sound). Gateway does not have an updated
driver so I tried the one for XP (from 2004). On first run of the exe
installation file, I received an error that the software will not run on this
operating system (Vista). It then asks if I want to try again. I said yes and
clicked "reinstall using recommended settings". The SoundMAX installation
program then came up and installed the XP sound drivers. My M320 is working
great with sound and all.

To those having sound issues, you might want to try this. You should also be
able to get other software that ran on XP to work with Vista. I had the same
issue with Cyberlink Power 2 Go. Try clicking "reinstall using recommended
settings" if the initial exe install fails.