Oovoo Cant Detect My Camera Why Doesnt Oovoo Or Skype Detect My Camera?

Why doesnt oovoo or skype detect my camera? - oovoo cant detect my camera

I built a camera into my Toshiba laptop and when I go to ooVoo and Skype video chat, I can not! He does not see a camera and I worked a few months ago ... How do I solve this problem?