Ok, I downloaded this since it was on the Apple site and now my iSight has stopped working. - I opened photobooth, the iSight light came on, Photobooth unexpectedly quit with a error message appearing and now my iSight can't be used AT ALL. I don't know how to uninstall it, nor do I know how to reconnect my camera. Can anyone help PLEASE? I do some blogging and video chatting so my iSight is really important.