I have an Dell XPS1530 laptop and two Dell TVs: a W3207C LCD and a W4201C Plasma. The laptop and both TVs have HDMI jacks, and I want to be able to use either TV as a monitor for the laptop. But although the connection between the laptop and the W3207C works fine, the connection from the laptop to the W4201C doesn't work at all. The HDMI jack on the W4201C is ok, the Belkin cable is ok, and the Nvidia control panel for the laptop actually recognizes that the laptop is connected to a W4201C. But the W4201C doesn't recognize the laptop -- no picture and no sound. Anybody have any idea what the problem is or where I should start looking for it?