microphone for chatting? Ok, I've done all I know to do. I've hooked up my mic to my computer and tested the hardware and when I talk into it, I can hear myself but when I go to chat, the person on the other side can't hear me. Yes, I am pressing the talk button!! Can anyone tell me what else needs to be done in order to make this work? Please!I use yahoo and yes the volume controls are turned up. I hear myself on the mic but the other person can't hear me on their side