IE browser
Can someone tell me how to get my IE browser to do searches by entering the search directly onto the Address bar?

I used to be able to enter a phrase or word on it and it would return a barage of sites. Now I no longer does it (since I installed some Yahoo anti-spy program) Now I get a "page canot be displayed" message, unless I enter a complete URL. Here is an example of what shows on the address box as when I entered the word Cancun.