...to go on there.

A mysterious "something is happening in the background". You also don't detail which version of Zone Alarm you are using, but generally doesn't it list all the applications you allowed to connect in the past, and show little icons of what are actually connected? You can also remove all those unknown "Programs" listed by ZoneAlaram, and it will pop open and ask you if you'd like to allow when they (and the mysterious task) try to access the internet next time.

You can either then "deny access" and check you have still got internet use, to narrow this mysterious connection down.

Most people have Windows Auto Updates, and automatic software checks (looking for newer versions) as well as Anti-virus (to keep security up to date), and chat programs like MS Messenger on by default too. All will look relatively mysterious and slow your transfer speeds.

Good luck,

GeeBee.