Swordfish_13, I can see why someone might want to neg listener for this thread.
In this thread, listener asks an almost identical question.
Can you avoid attacks from a certain individual by not being online at the same time the hacker is?
(dated:05-20-2004)
granted, there was no answer in great detail but instead of starting an entirely new thread, why not bump up the old one instead? (now worries though, I have no intention of negging listener).

In any event, I do feel bad for listener as he/she seems to be going through alot of b$.
judging by previous threads, it appears that listener has: OnTrack, Pest Patrol, Zone Alarm Pro, Stop Sign AV, TDS-3, Spybot S&D, Spyhunter, and Norton 2000 installed (or had installed at one point or another).

listener, out of these programs listed, which are still on your system? I'm assuming you still have ZA Pro? what do your firewalls logs look like (what leads you to believe you are still presently being attacked?)
From your previous posts, it definately seems like you have someone who is determined to watch your online activties, especially your emails.
It appears as though you have some good security setup (firewall, trojan scanner, AV, spyware/adware removal tools). I'm just baffled as what exactly is going on with your computer that's indicative of malicious activity towards you in particular. As for being online for short periods of time, I guess that could work on a very small scale but in the long run, I'm guessing it won't do you a whole lot of good.