I'm currently running a EMachines E725 Laptop with no built in microphone and no software for one either. However when i am online in Teamspeak and i press my Push To Talk key (Y) it begins to give feedback to my friends in the channel. I was wondering what may cause this and how i can either make it so it picks up on my voice or remove it completely. I appreciate any comments that may be of any help. Thank you.