I've realised now that what they're telling you is the the Dualpix Exchange is supported, but maybe not the HD one...
That makes sense. In the list of supported devices of the uvcvideo driver, there are 3 hercules cameras there, but none is called HD:
http://linux-uvc.berlios.de/#devicesThen again, what's really important is the device ID, and not the model. You can see this by typing "lsusb" as root with the camera plugged in, and then check if it is listed on that webpage.
Assuming you tried the webcam with some recent distros (i.e., with kernel >= 2.6.26), then it might be that it doesn't work with linux at all...
Your best chance then is to google the device id, to see if there's any other driver for it... failing that, only getting another webcam that has linux drivers.
But let's wait for your VL installation, then
