Geefd.dll

this is the name of the file that you need to be worried about if you are having some pop-up problems. it is a trojan.

i discovered it as a browser add-on in internet explorer 7 (beta 3). a quick search online revealed it to be a particularly nasty torjan called Vundo.

if you feel the need to remove this file you can get a removal tool from the Symantec (the Norton people) here.

~m