My Pinnacle card is not the same one as yours but assuming similarities, Open the 'Settings' dialogue and select the 'Audio' tab. Make sure your sound card is selected in the 'Device' box and that 'Line-In' is selected in the 'TV Playback' box and the 'Sound Recording Input' box. You may find you need to set the 'Sound Recording Level' to maximum to get decent sound levels on captured material. Hope this helps. LC.