HI, I have bought new computer few days ago. And then I download new Windows Live Messenger 9 to my computer and used it for some days with the my webcam for few days. But, when I used it again my video call has not working. When I log in the receiver and other friends of mine can able to hear me also see me, but i can only see them but not able to hear anything from them. I have done all the things regarding the sound of my computer. So, if anyone is having any solution to solve my problem then please help me to solve it.