[ Other - Hardware ] Open Question : Why isn't my webcam working?

I have a Dell Studio 1537 and it has an integrated camera. I used to use it all the time until I tried opening up and it said I needed to connect a webcam to the computer. My dad called a Dell supporter about the problem, but there was a chance that my hard-drive could be erased, which I definitely do NOT want to happen. Is there any other way to fix the problem? I really need help with this.