If you're referring to the OP, she's my Mom (I told her to come here, because ya'll are so helpful), and I just got it for her for Christmas ... an iPod Nano I think.
[She's EST and asleep right now.]
She was working in iTunes and then her PC went nuts, started making weird noises, so she shut the PC down and disconnected the iPod.
Now the iPod is locked up, and she can't get it to shut down.
Hope this helps.
HUGz! Jules