Are you able to add http://ad.doubleclick.net to the Pop up blocker and it just doesn't work?
A possible option would be to go to My Computer > drive C: > Windows > System32 > Drivers > etc > Hosts.txt. Scroll down below "Host" and ad the following:
127.0.0.1 ad.doubleclick.net (w/o the "http://").
Close Hosts.txt and click "Yes" to save the changes.
But this does not always work as many advertisers can circumvent this. But if you are blocking Cookies you should be able to block ad.doubleclick.net By logging out of the CNET Forums, enabling Cookies, logging back into the CNET Forums, then again blocking Cookies.
BTW, the ad.doubleclick.net pop up it's self does not pose a risk. Rather it's just a slight nuisance.
Hope this is helpful.
I have Windows XP, with McAfee, Spybot, Ad-Aware. There is an ad website that automatically shows up on my AT&T browser window, It is http://ad.doubleclick.net. I want to eliminate this from my browser, but can't figure out how. Before AT&T took over SBC, I used to be able to go to tools, and pull up the pop-up blocker window, then type in any site I wanted to delete. I can't seem to do this anymore. Ad-Aware is not getting rid of it. Any suggestions? Thanks.