Thanks for the reply MegaRock.
Tried your advice but it still doesn't work ...
Basically, all that is broadcast is the mic - no music at all, no matter what 'source' is used. I was using 'Stereo Mix' in the 'record' side of the mixer as the FAQ said to do.
Once the switch on the mic itself is depressed, the mic kicks in and won't be switched-off or volume lowered by using the fader on the playback mixer / checking the 'mute' box.
Really frustrating this one !! My using a USB mic is ok then and won't affect things ??
The mic is working but can only be switched-on and off again by using the button that is actually on it. When in the 'soundcard input' mode I cannot hear any of the music that is being played in WinAmp.
Any advice will be muchly appreciated !!