Is it possible to turn off the iSight? Mine has gone off and i can't put it back on. Every time i try to use it or applications connected to it, i get a message telling me to that it's either being used in another application or to turn the iSight on and i've no idea how to do that.
Do you have any dashboard widgets that are using it? I know there is a "mirror" widget that uses the iSight and won't let anything else use it while Dashboard is on.