Airfoil speakers : Cant seem to connect

I am trying to send Audio from my Ipad to multiple speakers using Airfoil.

The instructions are here:

]http://weblog.rogueamoeba.com/2012/02/12/send-audio-from-ios-to-multiple-speakers-with-airfoil/[/URL]

http://weblog.rogueamoeba.com/2012/02/12/send-audio-from-ios-to-multiple-speakers-with-airfoil/

I get as far as the final step but cant see Airfoil speakers in the drop down in the Airfoil speaker lists. I see spottily, safari etc .

Any ideas please?

thanks

Brilliant, works perfectly.

Thanks very much.