Some of our websites appear not to work properly when "Norton internet
security 2003" is installed, maybe "ad blocking" is causing trouble.

Possible problems: javascript filling of a listbox, opening pages in
new window, etc..

Questions:
1)Visit our websites with "Norton internet security 2003" 
installation installed on your computer. Report on the impact this
installation has on the website.
2)Are problems caused by standard installation or user preferences set
at installation.
3)How can we adjust our websites content (javascript? etc.) in order
to prevent problems.Presuming our visitors have a standard "Norton
internet security 2003"  installation.

Websites:
www.planesimple.co.uk
www.waarheenwaarvoor.nl
www.gefundenesfliegen.de