You've already shown that it doesn't work on two different computers. Not so silly to spend a few bucks rather than tear your hair out. How much is your time worth ?
Just trying to help.
Hey, it is not that i can't buy other webcam, point is that if it happens with other webcam as well than what will i do ? Important is to share Knowledge.
solution add Knowledge to the base of Existing knowledge. i hope you understand my Point.