The same problem happens to me on my laptop ohci port, but I can get two images on my desktop uhci port. Some body told me that the camera drivers gets the entire USB bandwidth, and a second camera can not get any bandwidth. One way around is to have a second USB port, or buy a card that has each USB port separate (not shared). Ted Thank you, actually I don't know weither my ports are separated or not. I have two of them, that's all I can tell ! how could I check this ? Thanks again, Vincent