|Sorry we couldn't help. |
Wait a minute, I've just thought of something. Have you gone into network neighborhood and clicked on the link saying "Make New Network Connection". I'm just guessing that's what it says because I can't remember what it actually says but you know the gist of it. Try that and see what happens, unless you've already done this. I which case, I'm fresh outta ideas for the time being. :S Sorry I couldn't give you any better solutions.
You need a good defence if a trojan barges into your territory.