Twitter Bootstrap dropdown not working in any browser

Question

I\'m trying to do a dropdown menu and it seems to work in Jsfiddle. It seems that the javascript and css files are correctly loaded: http://imgur.com/YYiJS4p

But it

Answer 1

This is what i'm loading:

I tried your code, loading a bootrasp I have in my machine and a the jquery from the site. and it works perfectly in FF, chrome and safari. I don't have a explorer to test it.