I am having the same problem and also have SigmaTel. I just ran the
uninstall including selecting the check box, rebooted - saw Vista (32 bit)
install the missing bits. Then I downloaded the SigmaTel driver for Vista
from Dell, installed it and rebooted.

It still says it cannot play music files because of an audio device problem.

Under 'services' Windows Audio & Windows Audio Endpoint Builder cannot be
started -The first because of dependency on the second and that one because
of "Error 0x80070003: The system cannot find the path specified."

Norman Castel

"Cal Bear '66" wrote:

> Did you first UNINSTALL the Sigma Tel device (including checking the box to
> delete driver files) and reboot before you tried to install the downloaded
> driver files?
>
> --
> I Bleed Blue and Gold
> GO BEARS!
>
>
> "IWANTANAPPLE" <IWANTANAPPLE@discussions.microsoft.com> wrote in message
> news:F1966A04-3F48-4CD3-9596-3FD417B1AC45@microsoft.com...
> >I recently installed Vista Ultimate on my computer. It has been a nightmare
> > and Microsoft customer service has absolutely sucked. Essentially, after
> > installing VU, I now have to upgrade my Office (another $400) and somehow
> > when a Microsoft Customer Service rep was performing an external audit on my
> > system, he removed my audio device. I don't know how to reinstall the device.
> > When I go on line and download the noted driver (simatel HiDef Audio CODEC),
> > it is noted as working properly. I can't figure it out and neither can
> > Microsoft. Anyone have any ideas?
> >
> >
> > "Cal Bear '66" wrote:
> >
> >> What is your audio adapter in Control Panel > Device Manager, (expand Sound,
> >> video and game controllers)?
> >>
> >> Have you downloaded and installed audio device Vista drivers from your
> >> computer
> >> manufacturer or audio device manufacturer?
> >>
> >> --
> >> I Bleed Blue and Gold
> >> GO BEARS!
> >>
> >>
> >> "Stephanie" <Stephanie@discussions.microsoft.com> wrote in message
> >> news:73DBFED4-EA08-4508-BE20-D7588751ED07@microsoft.com...
> >> > im having the same problem witrh the "No Audio Output Device is
> >> > installed"?
> >> > after using my itunes i restarted but it did nothing
> >> >
> >> > "Mallory" wrote:
> >> >
> >> >> Thank you!! I ended up restarting and whatever was wrong resolved
> >> >> itself...Thanks again for your help!
> >> >>
> >> >> "freddy" wrote:
> >> >>
> >> >> > Mallory,
> >> >> >
> >> >> > In Device Manager, open the Properties of your sound device, and note
> >> >> > what
> >> >> > error messages are displayed. The Properties section typically provides
> >> >> > some
> >> >> > guidance as to what corrective action to take. Follow any advice
> >> >> > provided.
> >> >> >
> >> >> > In addition, if all else fails, you can remove the sound card in Device
> >> >> > Manager, thus allowing Windows to reinstall it when you reboot. This
> >> >> > step
> >> >> > often fixes problems such as you have. Post back if none of these
> >> >> > suggestions does anything. We'll try to devise another approach.
> >> >> > --
> >> >> > freddy
> >> >> >
> >> >> >
> >> >> > "Mallory" wrote:
> >> >> >
> >> >> > > I had iTunes running last night when the LiveUpdate program restarted
> >> >> > > my
> >> >> > > laptop and when I turned everything on this morning, I was informed
> >> >> > > that
> >> >> > > I
> >> >> > > have no audio devices installed. What is going on?
> >>
> >>
>
>