That's exactly the DSP map I was talking about. I deleted reverb Lite, Stereo Chorus, FXMx2, Prolog, and Epilog. Try right clicking and selecting disable first, and if you still have sound then delete them. My map looked slightly different, but my card is an Audigy, so that is to be expected. I didn't mess with the buffer settings, as I didn't think that would have any effect.