Thanks guys, actually it was a nimda virus that my brother got on his computer. Since we are all on a LAN it sent me the virus and there was nothing I could do about it. I keep my computer running 24/7 because I run a small business, and therefor someone was able to come into my computer during night and install a back door. As soon as I found the virus i got rid of it on all the computers on the LAN then installed better FireWalls on all the computers. It blocks him from coming on now (unlike the other which was easy to get by) but I still want to get back at him. I figured out how to trace him using my firewall and it gave me the same information as Conratction posted. The funny thing is, he's using the same ISP as I am, just in another state. I emailed my ISP, hopefully I can get more detailed information. It doesn't really matter though, since I'm installing XP this weekend.