Posted 26 February 2007 - 04:35 AM
My computer has been working flawlessly for some 18 months, until a couple of days ago, when the sound mysteriously stopped working. The problem began immediately upon attempting to view an online episode from CBS' InnerTube streaming video service. The video displayed just fine, but there was no sound. Following a restart, I had no sound aside from system beeps in any application, whether from .AVI and .MP3 files on my HD or games.
System specifics here:
OS: Win XP SP 2
Mobo: Asus A8N SLI (Nforce4 chipset)
Sound: Onboard Realtek AC 97
I've attempted the following fixes:
1) I downloaded the latest Nforce4 drivers, installed them and sound returned, but each time I restart, the sound disappears again. Repeatedly reinstalling drivers (usually two or more times) eventually causes sound to return.
2) Speakers have been tested via substitution, and they're fine. I'm tempted to try an old sound card, but t's obviously not a hardware issue because otherwise I'd never get sound at all.
3) The system scanned fine with AVG Pro. I run a full AVG scan daily, Spybot S&D every couple of days, RootKit Revealer once a week. I use ZoneAlarm as a firewall solution.
What gives now? Is there something that should be loading on startup that isn't? CBS InnerTube uses Flash or RealPlayer (user option). Why would using the service break sound?
Thanks for any assistance. I'm a software developer, not a desktop support guy, so these kind of issues are pretty obscure to me.