I decided to try ZoneAlarm for a while. I have 3.7.159, also EZFirewall which is ZA 3.7.179. The true vector engine won't run on either of them. Curious, I removed all traces that I could find and downloaded the latest ZA 5. Again, the true vector engine wouldn't start. Puzzled, I borrowed a friend's CD. He's running ZA 4.5. No true vector. All I get in all cases is a box in my toolbar with an 'X' and saying that the true vector engine is disabled. One not working, I can understand, but when I try 4 different versions and none of them work, there's something else wrong. I know the 3.7.xxx versions were good because I've used them very briefly before. Does anyone have any ideas. I installed and even rebooted twice in all cases, since I saw a notice in the ZA main GUI saying an error had occurred and I needed to reboot. ZoneAlarm does show up and I can configure settings, but not the true vector engine.