There is no media in the current folder Options

[TeamTerry]

Hi Guys, hope you can help as I am losing my mind.
I am an IT consultant by day and can rebuild a server etc... but for the life of me I can't network my HD Live TV
I have got a recommended Dlink USB Wireless and it connects to the network fine.
I get an IP address from my domain (yes Domain - running Server 2008 R2)
I can see all my networked PCs including my Server, my NAS (Server 2003) and my Win7 Enterprise x64
I have disabled all software firewalls.
Shared folders have standard avi files inside which play fine off local drive on WDTV Live.
Share names have the magical '!' in front

I can see the PCs, but when I connect (domain credentials have been authenticated fine), I get the error
'There is no media in the current folder'.

Please - someone must have solved this issue. I get the same error on all Operating Systems, including good old reliable Server 2003.

Is there a way to enter the UNC or network path to take you directly to the share you want?

Please help, other than this the box is awesome.
Cheers,

Tezza