[vman512]

I am having a problem with the Yahoo voice conference feature. When I try to speak to someone, I can hear them, but all they can hear is a strange growling noise. I ran the Audio Setup Wizard, and the Conference test also made this strange noise. All of the other tests were fine. I have WinXP Pro, with SoundMax integrated audio. I have tried the following:

Reinstalled sound and network adapter drivers
Disabled QoS
Ran DXDIAG, and disabled sound acceleration
got Microsoft Virtual Machine

None of this helped. Thanks in advance for any help.