Hey, just wondering if anyone could help me 
I plugged in my ipod nano (4GB not one of the new ones) to charge a few minutes ago, and some message came up saying it needs to be reformatted to work with windows (this has never happened before) I didn't know what to do so pressed cancel.
My ipod has now completely frozen, I have tried resetting it and it won't do it (it normally does when it freezes).
itunes now won't work properly either
Thank you for any help

I plugged in my ipod nano (4GB not one of the new ones) to charge a few minutes ago, and some message came up saying it needs to be reformatted to work with windows (this has never happened before) I didn't know what to do so pressed cancel.
My ipod has now completely frozen, I have tried resetting it and it won't do it (it normally does when it freezes).
itunes now won't work properly either

Thank you for any help