Yes, I am also experiencing uploads that are taking a large amount of bandwidth, on a PPC Mac (Quicksilver 867). This morning I noticed the upload speeds at 320K, when I have the upload speed set to 10K. The only workarounds I have tried (with small success) is to stop and restart uTorrent or stop the individual torrent(s) that is(are) using a lot of bandwidth. This slows the uploading torrent for a time, but after a while it is back to using large amounts of bandwidth. Any help would be appreciated.