I have just got a SweetSpot and can't for the life of me configure DScaler to get the sound behaviour I want. I have an RGB source going into SweetSpot and the sound from the RGB source going into my line-in on my sound card. I don't want to hear the line-in during normal use of Windows XP so I have ticked "mute" for that in the sound control properties of Windows. I want the line-in sound to be audible when I start DScaler and select the RGB source to view. I am using DScaler 4.1.9. In its Audio-Mixer setup I have ticked "Use the System's Mixer" and under the "Mixer Line" choice I have chosen line-in for all sweetspot inputs. When I start DScaler though I still do not hear the line-in sound unless I go to the Windows volume properties and untick "mute" for line-in. Have I configured this wrong, or am I misunderstanding what DScaler is meant to do with these mixer settings ? Is there no way to have no line-in sound in Windows until I start DScaler ? Help!!!