Windows 7 cannot see WD elements drive

I have been able to see the WD hard drive attatched to the WDTV on windows 7 since I first bought the WDTV over 6 months ago, but recently it has disapeared. (Firmware update?)

In the netowrking tab in windows I see the WDTV fine, media streaming works fine and the hardrive attatched to the WDTV can be accessed just fine “from” the WDTV. 

I have tried waking the hard drive up and then refreshing the network to see if it appears but it does not.

I have norton internet security installed. Does anybody have any experience with norton causing problems with the WDTV?

Any suggestions?

Have you had any luck with this issue?