Just throwing this out there in case someone here has run into this problem. A neighbor has a fairly recent JVC TV (don't know the model, its about a 30-36") which began displaying a black rectangle over the image for no apparent reason. The box looks to be the size of the menu background, and comes on after a few seconds and stays there. I dug around in the menus a bit to see if there was something obvious, but I didn't see anything that would cause this. I don't think it's a feature. Thanks in advance if anyone knows what this might be.