PHEW!!! Data was intact.
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Lesson 1:- RTFM! or better still DON'T leave manuals around where the kids can touch them thus removing the LARGE colored piece of paper with "DEVICE WILL FORMAT HD!!!"
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Ok little bit of an update as I'm now really getting... annoyed (to put it politely).
I have bought a samsung 2TB hd this morning. installed it as per the manual. As its new I assume the HD is not formatted.
The DNS-320 powers up and shows a steady blue light in whichever slot I plug the new HD into (I have tried BOTH slots in the unit). According to the manual this is correct (yes?).
After waiting for the steady blue power light I tried the supplied software.
Under no curcumstances is either the NAS or HD picked up. Not within the network or even by the supplied software. I've hit the refresh button several times. Spoke to a friend who owns another brand of NAS and he said that if the power light (not hd ready) light goes off the unit is in sleep mode... Mine does this after about 4 mins.... Don't think this is helpful but who knows.
I have tried 2 ports on my router and changed the network patch cable. I have also plugged the device direct into my sons laptop but with no joy.
Any help would be appreciated.
Spudds