I live with several other people, and find that at keast one of them uses bittorrent and is really slowing down our connection to the point that its unusable. We've already talked about it, but frankly, people are oblivious. Instead of trying to police the situation, I just want to block it at the router. I have a linksys router. I'm sure I could do this by blocking ports, but I don't know which to block. Can someone help, or can you give me other advice on ways to stop this program from getting through the router. Thanks.