I'm not new to mac by any means, but I've never been great with network connections, servers, and general internet stuff. Anyway, I have a home Wifi that has three computers working on it. It is passworded with like a 14 character password. SO, on my itunes, "mAyaa's limewire tunes" pops up in the "shared" catagory. If I go into my finder and to network, the computer pops up, but I cannot open it or anything because I don't have permission. Is this person looking into my computer or just using my internet somehow? How do I get rid of this because it is really bothering me and I'm getting worried about it. Thanks in Advance!