I am getting the message "There is no camera attached to this computer" when I open iChat (which worked until sometime recently) and the enable camera drop down in the file menu is checked but grayed out. In response to another thread on this forum I unchecked shared files with no luck. I also repaired permissions, used Safe Boot, Cocktail, MacJanitor, and logged on as another user. I am unable to locate my OS disk to reinstall iChat or a clean install (which I hope will solve the problem if all else fails). I downloaded Skype and get the same message. Same thing with Photobooth too. I have a Macbook (intel) which has an internal camera. I've searched and googled with no success. Has anyone heard much about this?