Yep. I had the exact same issue with the drivers from the link below.

Later I found that the MS site (and the hp site) had updated drivers for my
hp PC. You might want to check that. The MS update site (as of today at
least) had drivers that were Jan/07. The hp site Vista drivers were Nov/06.

-Frank

"J A" <J A@discussions.microsoft.com> wrote in message
news:057BEACA-7622-4654-A18D-EAF42233CB00@microsoft.com...
>I downloaded the new drivers. But I can't get past the message that the
> drivers are unsigned. It just keeps appearing again and again even though
> I
> accept. Anyone else have this problem? Is there a solution?
>
> "Beck" wrote:
>
>> Realtek have released new drivers for the AC97 card.
>> Dated 24th January 2007, these drivers are not yet up on Windows Update.
>>
>> http://www.realtek.com.tw/downloads/...tDown=false#AC
>>
>> These are proper drivers and I can confirm you will no longer get the
>> error
>> message in control panel that the drivers are not designed for Vista.
>>
>> During setup you will get a message to say the drivers are unsigned, but
>> accept and continue.
>>
>> YAY no more annoying message about my sound.
>>
>>