I have a Microsoft LifeCam VX-6000 Webcam. It has a microphone on it, but it is horrible. So i got a Microsoft LifeChat LX-3000. I installed what was on the CD, and pluged it in. It didnt play any sound, but my other speakers did, nor did it play my voice when i spoke into the mic. I restarted, nothing changed. How can i make it so sound comes from the speakers, and how can i make it so the microphone works? They both use USB plugins. I also tried unplugging the webcam, restarting, nothing changed.