Ipod Nano 4th generation not turning on..

Hello,
Well, I've had this ipod for a couple months now and it never really gave me problems. The other day, I went to plug it in and it won't charge or turn on, just stays black. The battery was dead when I went to plug it in (E.g, it shut off on me from losing battery). It shows up as an unknown device on my computer when I plug it in and it won't let me install the driver. I've already tried pressing the menu and center buttons down at the same time (I've had to do that before) but it doesn't do anything. I've been searching the web for a while now and I've tried everything, but it just won't work..any ideas?