I have, yes. HP mediasmart webcam opens a search window that gets no result, and just 'webcam' open the 'Devices and Printers' window, which doesn't show it as a device. A coleague of mine has the 6530b, and his HP driver download page has a web cam app that works, mine doesn't. I don't want to have to install the facial recognition software just to use the webcam, as I had to do with the protectools app and the fingerprint sensor. mmMmm, I just noticed this is for 4420s, and mine is actually a 4520s. Am I in the right place then?