Hi all, I'm running Lion on my MBP and the internal iSight is not working. The green light works indicating that the camera is on, but all I see on the video is a black screen. I've read through various threads on iSight problems and haven't found a solution that works. I've tried resetting the PRAM as well as every combination of restarting/shutting down. Is anyone else experiencing the same issues or know of other tricks to get this working?