My Computer is Hacked

I can not type the chinese now
sorry about this
i am in the library and using the computer of school
In America


Since last two week
there are two Americans
came to my room
and said to me
"Hey dude, take the thing off my computer, My CS is so slow
ping is like 1xxx, i know you put some thing in my half-life"

so he thinks his cs slow because i did something in his computer
and his roommate also thinks i did something
so, they say they knew my IP
and they have done something in my computer

( I have never done the hacking thing to the other people)

So..
I started check my netstat since lask week
there was always a strange net address and port in 5xxxx....


two days ago
i restarted my windows XP

i became slow, and every hardwere setup configuration is gone.
no hardwere...

FxxK...

I will re-install my windows these days,
and i will take some picture and post the pictures in these days!