About the virus Oze mentioned - havent heard about it, and if Norton do not get rid of it 100%, I dont know what to do !
Have you tried Microsoft-updates ?

Last time I had a problem like that, and Norton said it got rid of it - it still had ruined some system files, and I had to format my C-drive :-(

I will look around a little today, to see if I can find some solution !

By the way - I remember that Panda actually found something that Norton didnt, for me once - try that;

http://www.pandasoftware.com/activescan/com/default.asp?IdVendor=733&IdLang=2&dPais=52


In the meantime, here is over $590 in FREE
Pay Per Click Advertising;

http://www.ezinefire.com/Home/redirect.php?master=1346


Good luck Oze !!