You're a newcomer in this forum, would you please respect the rules and not triple post ?!!! You have a question ? No problem, you're in the right place to get an answer !
Your question is hardware related, so you don't have to post the same thing anywhere else than in the hardware forum.
BTW: Sorry as for your question,... I don't have the right answer for you... but what is the brand of your webcam ? Look for the right driver on manufacturer's site... Hope this helps you !
No offence meant !