Driver wont install

I'm trying to install the driver for my webcam and it just will not work. The first day that I kept trying kept telling me that there was a "buffer overrun" but then it took to me to finish the setup as normal. However when I restarted and plugged in my webcam, it said it could not be found. So the second day I installed it from the website, however when i restarted the computer, the part about plugging in your webcam did not appear. I then uninstalled the driver and tried to install from the disk again, but when I selected "install driver only" it said that the driver is still installed. I went through to my installed programs and there was nothing web-cam related installed. I've tried for many days to install this webcam and I'm very frustrated. Can anyone help me with this matter?
can't install webcam. disk doent work and cant find right drivers online. please help