Sound : Audio Problems

I have a Creative Sound Blaster Xtreme Fidelity Sound card. Its 2 months old. and has been working good ! After the last update , I have been hearing different sound noises .during game play .its starts off as a high screech sound ,then turns into very loud static . Its to the the point i am playing without sound. I have tried 4 differnt sets of headphones . I then noticed , This problem only happens on SL . I have played other video games, and played music ,watched dvd's etc . The problem is only direing SL . Is Anyone else having this issue ?

Is this with the optional viewer update that came out yesterday? If so, I also had trouble. Everything that I had used a simple "Ambient Sound" script in either stopped working or looped so quickly it sounded totally distorted. I posted about it, but no one else seemed to have this problem, and ended up rolling back to the version of the viewer before the update bc/ it was crashing so often when I tried to edit things.

In my case I suspect that the script may have worked before despite a bug and now the bug is fixed and I need to redo the loop time I set in the scripts. I didn't want to change anything though until after the full viewer release.

I have 2 pcs networked. One I use as a server to stream music to my islnad. When i play on that pc ,I have no provb.s , Grr hope its not a virus . If it was my sound card ,it would be haveing problems in all things .