I've been trying to install the USB support for this device on two machines running XP SP2. It installs okay on one of the machines, which convinces me that its not a defective device, but the other box is never able to recognize it when attached. The camera installs three USB drivers: a "Composite Device" first, then an "Imaging Device" and a sound device. My HUNCH is that the reason it isn't recognized on the one machine is that that's the machine my Canon USB printer is installed on, and since it has card slots, the printer is already installed as a "Composite Device". Does this make sense? Is there a workaround? David Gillett The NOSPIN Group has added a new feature on our website, web based bulletinboard for questions and answers: Visit our sister website at http://nospin.com