I don't know of a Vista or Windows 7 Soundmax driver for a Socket A MB. The ASUS driver support page for your MB stops with Windows XP drivers period. That board is ancient and out of warranty for many years. Look to a third party sound card and install it in an available PCI slot. Like this if simple sound is all you need. It works with Vista and will likely work with Win 7 and it's cheap. I have one and it works fine with Vista 64.