I cant see the contents of my shared folders?

Hi all,

I have recently bought a WD TV live WDBGXT0000NBK, I have set it up and attempted to set the network up, I can see all my shared folders on my external hard drive thats connected to the PC but when I tryed to watch the contents of these folders, the WD TV reckons theres no media files in the folder?? Does any one have any ideas?

Check the settings for the folders and verify they have been shared over the network