Airport Express (With iTunes)

I cannot see a sbject thread on the search function.... but I know this is a problem from the "Store" reviews.

Basically I have moved to Spain and have not used it for some time...... previously my AE with itunes worked ok. I have successfully set it up to play music through my remote speakers etc etc etc.

NOW my computer does not even recognise it.... When I plug it in the green light gives a very quick flash then nothing..... I have reset and nothing ... it seems thoroughly dead... Is there anything I can do with this.. or is this now junk.
A very frustrated

Stuart Evans any help greatly appreciated.