Thanks. I've just completed the exercise,as confirmed by the New Hardware Wizard before he disappeared, but------still no sound.!!! I now have the 3D Audio Configuration icon back in my tray but the DxDiag Tool Sound 1,2 and 3 and Music tags all say:-- "DirectSound test results. Failure at step 3 (DirectSoundCreate) HRESULT = Ox8878000a. (The request failed because DirectSound resources,such as the priority level,were already in use by another caller)." -- I haven't a clue what all that means, so where do I go from here please. ? Regards, Alpha. :-?