Well, if nslookup doesnt work, then you could try throwing your computer off a bridge . Honestly, I don't see any way that you could type a host into a browser but not be able to resolve it using nslookup. Frankly, its IMPOSSIBLE. you are typing like "www.foo.bar", not "http://www.foo.bar"...right?

If typing this exactly from the commandline(cmd.exe): "nslookup www.google.com" gives you an error while you can surf to the server in your browser. Do like I said before and throw it off a bridge.