Mel:
You can use what you wish, of course. All I can say is that what you are experiencing wouldn't be the case if your settings were correct OR you used a different browser and/or a different security package. Give my suggestion a try: Firefox and Ghostery add-on. It will tell you what's on the page. (doubleclick, googleanalytics, google custom search engine, quantcast, scorecard research beacon)
If you're not getting the issue with your other devices, it's something on that one PC. I'd be shocked if it were a legitimate threat. It's more likely that it's something innocuous that your software or settings on that one PC is interpreting as something "dangerous."
Perhaps Norton is better than it once was. THAT wouldn't be too difficult as it was beyond terrible. Some of the other lesser known security packages are far better rated than the big two. Take it for what it's worth. (AVG, Kaspersky...)
Dude
Edit: There is something that Firefox and Ghostery don't like on the Search page. I just pause Ghosery there, but I see no adverts or anything of the sort anywhere on these pages. But there is definitely some tracker or something with the search feature, because Firefox and Ghostery won't allow a search. All sites have these types of things, that's why the adverts often reflect what interests you. They focus their advertising on you based on the info they mine from your internet use.
"google AJAX search API" is what FF and Ghostery don't like...
Post Edited (dude1969) : 1/21/2013 5:37:00 AM (GMT-7)