So I originaly had this same problem with the free version. I now have the Internet security zone but after installing it I still have the same issue. I purchased it hoping it would work, and if not that I could get customer support. Is there no e-mail technical support for the purchased products?

Anyways, the problem occurs when the Internet security zone is set to high. If it is then I get no internet connectivity at all. If I reduce the setting to med, then I can access the internet just fine. After checking the alerts and logs I see that a ton of medium alerts that all look like this:
Medium/date time/firewall/TCP (flags:S)/Source IP/Destination IP/outgoing/blcoked/... /personal policy/extblockall2

So I dont know what the different policies or rules are but they seem to be the problem. It indicates under policy that its "Personal Policy" and under the rule tab they all say "ExtBockAll2"

Not sure if this is the problem but if anyone can help I would appreciate it.

ZoneAlarm Security Suite Version 8.0.298.035
TrueVector Security engine version 8.0.298.035
Driver version 8.0.298.035

Operating System:Windows Vista Home Premium
Software Version:8.0
Product Name:ZoneAlarm Internet Security Suite