problem with sound card configuration

[Tom Horsley]

On Fri, 6 Jul 2007 12:00:18 +0530
Rahul <ursrahul.gupta at gmail.com> wrote:

> Hi,
>              I installed FC7 on my system and have problem wih the sound
> card. it was working fine the day i installd fc7 but after sometime it
> stopped working.
>   my sound card model is AC'97
> if i try reload the driver it says restart ur box which i tried several
> times but hasnt workd even a single time..
> Can someone guide me how to reconfigure sound card

Do you have any USB devices plugged in since the last time the sound
worked? If so, there is a small chance that you have the problem
I just ran into:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=247224

If I boot the system with the webcam plugged in, the audio
devices all disappear (no idea why :-).