NIS 2010 repeated finds resolved tracking cookies

I'm using XP SP3 with NIS 2010.

 

Within the last few days the idle scan has started coming up with Action Required windows, fix not attempted.

 

Generally it finds 3-4 tracking cookies: ad.yieldmanager.com, tacoda.net and sometimes insightexpressai.com. Plus an orphan cookie cleanup.

 

Each time I can either select OK or Apply All and it goes away and says the threat has been resolved.

 

The first couple of times there were actually such cookies, but they appeared to repeatedly return. I manually located all instances of such cookies and removed them. I've changed IE8, Chrome and Firefox internet options to disable 3rd party cookies and rebooted, but the idle scan continues to find these cookies. Before running the Fix, I've searched for anything like them (using a dos prompt and something such as dir c:\*tacoda* /b/s/a) and cannot find anything.

 

After doing the fix, if you seek out the security status of this fix the cookies do not say removed but 'not detected.'

 

This typically happens each time the idle scan runs, so if I do the fix then the next idle scan finds the same problem, even though I can't actually find any such cookies.

 

I've looked for these strings in regedit and only found them where I've added them to the Internet Options specific blocking (as suggested by others on how to disable these specific cookies).

 

Any suggestions? I don't believe the cookies actually exist, but the idle scan seems to think they do.

 

Pat