This problem is still happening. Recent occurances I've linked to google - I google something and click a link.
Then I hit back, nothing happens. Look at the browser history, and it is filled with links to some advertising site, one example 'atdmt.com/(link stuff)'.
If I keep going to the history, after maybe 100 pages of that link, it gets to the actual previous page - or the history is filled only with that advertising page.
Running several adware programs hasn't fixed it. But I googled atdmt.com and found a privacy page with a 'beta opt-out' link, which claims you can opt out of 114 firms' ads.
One of those firms is google, most are unknown. I've given that a try just now.
Here's a link to the page, at the bottom is 'about our ads' with the link to the opt-out.
It spent about a half minute 'scanning my computer', and then said I had current ads from 73 of the companies. I did an opt out of all 114.
And this is after I ran 'Superantispyware' earlier today that removed hundreds of cookies.
One of the companies 'wouldn't complete'; I went to that company and it says you can opt out, but that puts a new 'opt out cookied' only good until you clear cookies.
http://atlassolutions.com/home
Update:
That didn't fix the problem.
But I found a link that's relevant.
http://answers.microsoft.com/en-us/...ng-virus/41b86699-9c07-4fbb-ae64-afb37672498d
Not east to do though (and that one's for 'vista?')