Shoutbox

i have this problem where everytime i log in my msn account it completely disconnect my net connection... this all started after i used the messmsn.be (or sumthing) and tried the "poly msn" which you can use msn client as many as u wish.. since then my net connection conflicted to my msn account and i cant use it else il get disconnected in my net i already deleted this program from my pc and several time reformat the drive C and reinstalled msn client 5 times too but i still got the same result help pls...