I think I have solved this.

On my motherboard (Nforce 4 Ultra), in my BIOS, under the Power-ACPI
settings, the APIC support setting was set to disabled. Upon setting it to
enabled, and unfortunately doing a re-install (didn't work until I did that,
but your mileage may vary) everything worked perfectly. Apparently Vista
requires APIC to be enabled. Why it was set to disabled, is beyond me (I may
have done this, or it may have been set to this by default).

I hope this helps.

"emir50" wrote:

Hi there,
I've installed Vista beta 2 on my pc. I'm using a nForce4 (430) based
motherboard. Everything is working fine expect my sound card and my
Gforce7600GT. Actually i'm experiencing some probems with their drivers.
I went to nvidia website and notice that there are no nForce4 430 drivers
build for Vista. well, it doesn't matter since Vista installed them.

My sound card is a Realtek ALC880D. Windows detect it and it's should be
working however I can't hear any sound. I've tried to install the beta
drivers brought by Realtek but it changes nothing. I tried the old driver too
but useless.
Has anybody any solution for that problem?

As you propably know, nForce 4 430 includes an onboard GPU (6150). I suspect
it to be responsible for my 7600gt not working. I installed the beta2 drivers
brought by nvidia (88.61). The card is detected by windows but there's an
error code number 12 :

This device cannot find enough free resources that it can use. (Code 12)

If you want to use this device, you will need to disable one of the other
devices on this system.

In fact, I can't adjust any video setting, the card doesn't appear in the
display properties. This is very boring, 'cuz I can't get the aero interface.
Any idea about that one?

thanks for help!