Obviously I have the Quickcam Pro 3000 by Logitech. Many times when the camera is on, the picture is all purple. Not uniform in color, but wavy purple. Sometimes the picture will come back if I turn it on and off. This happens on my brothers computer also, however, not as frequently. Just looking to see if anyone knows why this happens, and how I can fix this problem/avoid this problem in future with other cams.