btw, have you considered using spy-removal software?
I installed one today (spybot) which seemed to work much more better than ad-aware (too fuzzy... didn't really even get to testing)

I understood that automating spybot is not huge problem and it can block thousands of security hazards (scans currently about 5,5k of spying defs)

all the spysoft and even cookies from doubleclick.com (and similar sites) that disabling of third party cookies does not work on.

not that this is anymore the same subject but highly related and I'm searching for persons who might be interested in testing these solutions.
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