when i get invited for video chat, or when i invite people for a video chat, my camera doesnt work for tokbox, my iSight camera works for everything else, i have my firewall off. and i use a macbook pro 13 in. unibody. once in a while my camera works for tokbox. i have snow leopard for software on my macbook. and only now and then people can see my video. help please. :(

If it was a problem with your camera, it wouldn't work for anything. If your camera otherwise works normally and it's only with this one program that it doesn't, then it's probably on the program's end, not your camera's. I'd get in touch with the program's tech support.