bstenmans 0 Newbie Poster

hi all,
i've been visiting a website that has installed much spyware on my computer. lavasoft adaware could remove most of it. but if i simply enter 'yahoo.com', ie does not find the website yahoo.com but show the address: http:///?%20yahoo.com.What can i do to have the http:///?%20 removed, that is put at the beginning of every address?

Thanks, Bernd