I just bought a MacBook Snow Leopard 10.6.2 and I can not start my isight to chat platforms available online. These sites use Adobe Flash Player to access my webcam, and when I want to turn on my cam a small parameter window of Adobe Flash Player opens to allow access to my camera and my microphone. I authorize access and nothing happens, my cam does not turn on. It never happened on the PC. I then thought that Adobe Flash Player is not installed on my Mac and I corrected it by installing it. But that does not change my problem. I do not know if Flash Player is installed because I can not find it in my applications.