Hi. I have had my mac for 3 months now, it's never given be any trouble until just last month. Well I went to use my iSight camera to show my friend what it could do however when i clicked on PhotoBooth the following error was displayed; "Photobooth cannot open because ether no camera is attached, or it is being used by another programme". Urh...Don't think so, i have only just booted up, so how can it already be in use, and as for it not being plugged in, well, it's internal so i can't really check the cord without voiding the warranty. If any of you have any ideas what the problem might me, or have an answer to what looks like to me a common problem (for some people), that would be great thanks. Sorry to sound like an old man, but i feel really sad about it Hope you can help, Tobe!