Ok.... this is what you do Jkath. Go out..... buy a new computer.
You might have a virus on your computer. Do you have anti-virus / anti-spyware / anti-malware? I think the 3 best are MaCaffee, Spybot v1.4 and Adaware.
Then again, what happened might have been a fluke. Did you reboot the computer? How is it operating now? There are so many questions to ask you. Its somewhat difficult to know what happened. It could be that your camera isnt operating properly..... it could be a conflicting software issue, or it could be a hardware issue. I hate to be so general, but its difficult to assess.