I contacted the webmaster and was told that you should only get one popup per login session regardless of how many pages you hit. I really don't believe that. Do you?
if so, how come at the end of the day I can have between 3 to six of them lying in wait, depending on what sites I visited? Also - if you disable advert cookies, as you should for other reasons, then they don't know its you again.. and can't stop sending you the popups.