Thanks

, worked a treat, all set up now.
Edit: Spoke to soon. All the sound from the TV comes through the speakers when watching TV (Sky), but when playing anything from the WDTV I'm not getting any sound from the speakers. I have the WDTV connected via HDMI.
Any idea what the problem might be?
I watch all my movies using the WDTV, so I'm hoping to get it working with that.