
set default to speakers ,not the one that check as default ,,,, if your computer has speakers then use that or use the headphone as default,,,as unc said the computer will use the default for all audio services ,,, by selecting the normal sc for window audio , that gives the use of the U-Mix sc to Cross , since its not being used by windows,,, i can play Cross on one screen of my set up and play windows media player on another ,,,,audio does work on both at same time because the M P uses the default and mixvibes Cross has the U-Mix sc chosen for its usage ,,,

hope this helps