Hello, I have a high pitched continuous sound out of the speakers. The mic volume lowers it and mic mute makes it almost go away.
Computer is a Gateway 2.86 desktop with XP home.
I have never needed the mic before but do now and can not record anything because of the low whistle when mic is un muted.
It started this out of the blue one day about a year ago and when I stumbled on the mic mute and could only hear it with speakers turned all the way up....I was ok.
But now would like to use mic....an suggestions greatly
appreciated.

Bert