I have recently bought the Dell Vostro 3555 and up until today everything has been running smoothly. A few hours ago I went to use my webcam on Skype. I started changing the webcam settings, but once I changed the gamma, the video display went bright green and orange, almost as if it is in negative. This also happens when I open Dell Webcam Central. I've tried restarting my latop but nothing changes. How can I fix this?