i have Prolink PCC5020 webcam. It was running fine and good but suddenly don't know what happened when i on my cam to chat in yahoo, no images. All dark and nothing. i checked in system > Devices but there too everything ok. Device working well and so is the driver. I uninstalled the driver and windows 7 detected the hardware and installed it again.
But to no use still all black. Adjusted the lens too bit nothing. What may be the problem.