My Dell Dimension E520 runs on Windows XP Media Centre. The Logitech Webcam works perfectly on Windows Live Messenger (Voice and video), but with Yahoo Messenger I can have a voice conversation only no camera. I have uninstalled and reinstalled both the Logitech driver and Yahoo Messenger (as suggested by the Yahoo support staff), but the problem persists. Can anyone suggest what else I need to do? It is very frustrating and time consuming. I am sure the problem is with the PC (setup etc.?), because I installed the Logitech Webcam in a friend's PC (also a Dell Dimension) running Windows Vista. In her PC both WLM and Yahoo works! Help!! What's wrong with my Dell?