Problems with my iSight camera.

I recently opened up Skype and my iSight camera displayed my picture with a strange IR or thermal type of image of me. I have gone through some basic trouble shooting steps such as opening other programs to see if the behavior exist, and also checking the system profiler. The system profiler shows that the iSight camera is recognized and the image behavior does exists in other programs. I have no idea why this has happened since my iSight camera was working perfectly the other day. Since it could be many problems my iSight camera I am a little hesitant in trying to replace the iSight cable since I am not sure if I have exhausted all trouble shooting ideas. My specific model is the A1260 early 2008. Thank you for any help that you guys can provide.