ipod nano not recognised by mac

[emilysa87]

Hey, I need some help.... I have an ipod nano which I connected to my mac and everything was fine until I took the ipod to work. I connected my ipod to my work computer (windows) to charge it, but it wiped all my songs and now when I connect it to my mac it isn't recognised. An icon comes up but instead of saying 'ipod' it says 'no name', itunes opens but it doesn't recognise the ipod as a device. I've tried resetting the ipod and I've uninstalled and reinstalled itunes. I've tried everything on the apple website but nothing seems to work. I'd really appreciate your help guys!!

Thanks, Emily