I am puzzled - baffled even. An icon has appeared on my desktop - not your standard link to a program or directory, just a small square icon - not quite always on top. I can drag it around the screen, but it does not have a link and I can't right mouse and delete it. Other than that it appears to be inert. I can best describe it as an orange space invader on a white backgroubnd 17 x 17 pixels. Does anyone have any idea what this could be?