go to control panel > sound > Communications > select Do nothing
This should solve that issue.
If is still appears the only solution I have so far is opening your mixer ( icon next to your windows clock ) and give TS more volume.
If your mic is still muted, go to control panel again and select the tab Recording, double click on your microphone and give it some more level.
Post edited 2012-10-30 11:31:372012-10-30 11:30:55