Green blind on photo booth?

I merely got my apple macbook laptop, and I hold approx. 40 photos on my Photo Booth. Today, I turned on the computer and the Photo booth was a blank peak, or a green screen



How do I make it posterior to normal?


Answer:

This happen to me the first time I used my MacBook. I did the exact thing: I simply restarted it. I thought in that was more to it!
I haven't hear of this problem before. Is the green table lamp on next to the lens at the top of the computer blind? If it is and you don't have any of the special effects turned on (one is similar to a green screen), next you have a camera problem.