POP UPS

[fox]

i have annoying pop ups every 5 sec or so just poping up i have norton internet security and norton virus scan i ahve done everything on that but does not find anthing wrong.i have download search and destroy, ad-ware,spyware,file checker and scanned all but nothing comes up.when i scan with search and destroy i always havean error it says there was an error during check xabot and dso exploit can u help me i dont know if im doing anything wrong or what but i need help.

plz help me