I installed the free version of Zonealarm on my friends computer and it seems to have screwed it up. She is running Windows 98 Plus, and she didn't have a firewall so I recommended she put ZoneAlarm on there (I've been using it on my XP and old Win 95 computer for years with no problems).
After I installed it, she couldn't do any web surfing - always got "page not found". So we uninstalled Zonealrm completely, but she still can't do any web surfing. She can sign on to her DSL connection ok, and check her POP mail account through Outlook Express, but can't surf the web. She called her DSL provider and they had her re-install winsock, or TCP/IP or something.. but it didn't do any good. They said they didn't know how to fix it and that she'd have to re-install windows. I find it hard to believe that just putting Zonealarm on there caused all these troubles.
Have you heard of any issues like this with ZoneAlarm? She says some of her computer-knowledgeable friends have since told her that ZoneAlarm has a history of causing troubles like this and she should never have installed it. I find this hard to belive - I've been using ZoneAlarm with no problems for years.