Font awesome icons not showing?

Hi

I suspect this has something to do with subfolders, as the site in question isn't at the URL route.

I have a font folder which I link to from the header of each page with

The font awesome css file then connects to routeurl.co.uk/subfolder/fonts/fontawesome-webfont.eot with css content like:

.fa-power-off:before{content:"\f011"}.fa-signal:before{content:"\f012"}

I'm not sure where the hook up problem lies is it the \f012 elements.

Really confused.