While using the Breakaway pipeline as the output, I'm hearing a warbling or rapid "wup, wup, wup, wup" type sound in the audio which is otherwise fine, which I'm not hearing when I use the audio card (Digigram) as the output. I've tried numerous things to solve this, but haven't had any success. Anyone know of a simple cause/solution? I have tried changing the sample rate, buffer size, buffer count, etc. with now success. I have also tried using PCM and DS instead of KS. This is a Dell Optiplex system running Windows XP Pro with a 2.33 ghz Intel core 2 duo, 2 gb of ram.