Norton Internet Security

Nothing has got me more wound up than this for a long long time. I made some simple changes to a site, externalising JavaScript and the like. Everything worked fine afterwards, rollovers et al, except I have some popup links on the site using "window.open". Norton kindly adds SymWinOpen script to a page with a JavaScript function disabling this function, brilliant! After hours figuring this out, I came accross this page:
http://www.mcse.ms/message1468891.html

Thanks to that man, I am now a happy bunny...