My acer aspire 4530's crystal eye webcam went black screen sometime.. especially when im tilting it what could be the problem?

I'm having a similar problem except my screen always shows only black. If you can get your image to appear sometimes it sounds like you may have a short in the hardware connecting your camera. I think you should contact ACER support and let them know you have a suspected hardware problem. I've tried uninstalled (right click my computer --> properites--> device manger-->imaging devices --> right click on webcam and select uninstall. The camera will re-install automatically when you reboot or have device manager scan for new hardware. You can also go to the acer website downloads section and make sure you have the latest webcam driver.