Static and sound

I upgraded to 9.1 and playing cd's has a lot of static. Sounds like listening to a radio station thats almost too far away,half music half static. In Kmix I have every slider down except pcm. If I slide pcm up at all I hear the static and sound. If I slide pcm down I hear no static or sound. Is there a way to get sound with pcm off? Any ideas on why this is happening. Has it happened to anyone else? I'm using aSound Blaster Audigy card. Thanks, Jerome