IPOD NANO!!

So ... my ipod nano is screwed up.
It's a 4th gen ipod nano. So few days ago, it gave this annoying problem of horizontal white lines on the screen. Okay, nothing intolerable. Now, it's just plain white. Fully white. Can't see shit. It's like an ipod shuffle as the screen ... is just white.
Menu + Center button doesn't work. What do I do??!!
Thanks.

It may be a hardware issue as LCD screens can just up and die for no reason. I'd take it to a repair center if its under warranty, or if it's not best to just replace it.