hi techiez!! i just got a Sify Broadband(256kbps/1gb limit). But after that i've seen the bytes moving very rapidly(both ways) even when it's not logged in. as it is a 1gb package, my friend told me to install "Zone Alarm" to stop unwanted internet activity to be credited to my account. i use Win Xp(with no sp's) outlook express(pop3,IMAP) msn, yahoo messengers GMail client IE6+sp1 winamp, WMP10 for radio please help, which ports i should block?