If I am setting up automatic upload or manually speed is not work, speed is upper my limit. I this see on graph. In 1.6 version line of upload was very near limit line. My maximally upload speed is 32 Kb and if I set limit to 15 Kb or 1 Kb utorrent is uploading max of my speed. I am working on MS Vista 32 bit. I am sorry for my language but I don't often use it.