Hi I would like to plug in my MS webcam to my Dell laptop which already has a built in web cam. I would like to be able to position it toward my fish tank while away from home. I admit I haven't done my homework on this but I don't want to start installing software and drivers and mess up the built in camera. Is this possible? I plugged it in (USB ) but it wasn't recognized. I have WIN7 on a DELL Inspiron. Thanks