Luc, I am also using the DAVID Cam-1-M at Win7 64 bit and it works fine. But only if I use one of the three USB 2.0 ports. My Notebook also has one USB 3.0 port. Connecting the cam to this port causes troubles, the camera frames are displayed jerkingly, sometimes like frozen. Mans not usable at all!
The camera driver that I had used here is version 188.8.131.526.
A bit later:
I just reinstalled the recommended driver from here:https://ssl.david-vision-systems.de/sho ... ubgjaqu811
….and found the same version as mentioned above. And it also doesn't work at USB 3.0. But my Pro9000 also doesn't work at the USB 3.0 port. So it's a computer problem (in my case).