The camera used to work with Photo Booth and iChat but I have just updated OS to Snow Leopard and now it works with iCamsource too. So I guess we will never know what was wrong.
I don' t use Macam, the Xbox camera is a UVC device. I can use it use it with VLC without any problem using qtcapture:// as the device The led on the camera is activated when I click on start on IcamSource that's why I thought about a video format issue but as other users successfully use this webcam it should come from my setup. What is the difference between the old release and the lastest one in term of device selection, video format etc ?
I am absolutely positive that no other application uses the webcam at the same time. Fo ex. I can open VLC and stream locally qtcapure:// without problem, then close it and start iCamsource but then no picture. And as I explained the led on the webcam turns green (meaning, it is properly activated) as soon as it is in use. So before I start iCamsource, the led if off (not in use) and when I start iCamsource, it turns green (in use). I suspect there is either a problem with the video format or with the selection of the right device for the video signal (I also have a DVB-T tuner hooked on this computer)
I have got an Intel Mac Mini with OS X 10.5 with a Xbox Live Vision Cam and there is no picture. When I start iCamsource the green ring on the camera lights up but the picture shown in iCamsource is only a black box. All the other software I used this webcam worked perfectly (including you competitor AirCam). I have purchased the iCam app for the iPhone and successfully used it with other webcam (Mac or Pc) but I am unable to make it work with this Webcam.