Well, one of the trick is not to mess with the 
browsers setting in the first place...
I use Netscape with java/javascript and cookies 
enable and I never get a single pop-up on the 
Forum. On keep-track I get one when entering the 
site and that all. (Naturaly, if you directly
jump to the keep-track page and get a popup, you 
will get it each time you come back to it without 
reloading it because it's in the cache of your 
browser...)

I use less Explorer but still, I don't seems to 
get more pop-up than with Netscape so...

By the way, there is one use to cookie : it let ad 
server know if it already served you an ad or not.
Disable them and you will always get ad because 
the server will never know it already served you 
one...

Cheers,
Yann Stettler