Ventrilo Harassment

Im not sure how to do this thought do I just put my mic in to my headset?

And if someone has a list of working vent servers send em my way plz.

Ive noticed when trying to play music in my vent channel that when your mic gets to close to your headset you get an extremely high pitched noise that hurts very much Similar to putting two phones next to eachother with the ear piece on the talk and the talk on the ear.