My iSight camera on my iMac doesn't seem to work. On the day I got it 3 years ago, it took my picture and I haven't used it since. I now need Skype, but now the camera doesn't seem to exist. I check it with iMovie and I see 'Camera disconnected'. I have reset the SM, done all the things Skype suggested and still no camera! I can see the lens even as we speak, but alas, no green or blue light. Perhaps it remembers my appearance from the first time we met and has shut itself off. I have never used iChat. What is a novice to do?