Well, I just got a external iSight for my mom so we could video chat and I have a problem. It is not working on my 2.4 Macbook Pro 10.6.1. I have read people have issues with SL and even Leopard. The green light turns on for a sec and then it quickly goes off. If I go to iChat to select the camera, it tells me my external iSight is turned off. If I go to Photo Booth, and then try to change the Camera from the menu bar, the iSight is grayed out. I have resest my PRAM already. No luck Chax isn't supported with 10.6. I don't really no were to turn now. Anyone know what to do?