C-Media Azalia Cmi-9880 Drivers for Windows Vista

I am currently testing Windows Vista Build 5744, but one of my devices is not
working with the drivers i have tried the install,

the device is a C-Media Azalia CMI9880 High Definition Audio sound card
thats build into my Asus P5GD2 Premium motherboard, i have tried using the
asus driver disk it seemed to install ok but when i reboot my computer and
log back into Windows Vista the Driver fail and i get a CODE 10 error message
(device cannot start).

I have tried installing the driver for this device under Windows XP w/sp2
compatibility mode but this does not work.

I have sent a bug report to Microsoft and the reply was listed as "Wont Fix"

I have looked on the C-Media and Asus websites and have found nothing.

Is there any work arounds, fixes, suggestions or drives i could try to make
it work,

Please help i have had this problem since Dec 2005 CTP

Thank You

Although I have seen a codec for this card for Vista I was unable to find a
Vista approved driver for it. Please download the Microsoft Beta Client
software and report this. Asus might have a Vista driver available when
Vista officially launches but you'll need to address that in the ASUS forums
or to ASUS directly.

final vista version installs an 32-bit MS driver for it (using ASUS P5GD2-X
mb) that doesn't load. Found a driver from C-Media forum (following a link
for ixbeta website - if I spell that OK), that loaded but fails to play sound
(think the forum did mention this issue, I will get an earlier driver they
had there). To install that driver though had to install it twice to enable
compatibility mode, plus it was unsigned