I am a PC user but I am convinced that my next buy should be a Macbook. One of the advantages is that it does not get frozen or take too long to load the operating system, I do not have a ipod but my daughter does and she has this issue where it gets stuck at the 'Do not Disconnect screen" a lot and she patiently just goes about her work till sometimes the next morning.
Today luckily I was home and when she told me this problem it did not sound right. The first thing I tried to do was reboot ( Oops ! thats a windows thing) and the Ipod does not have a way for you to remove the battery. Ouch !
Anyway my friend Google came to the rescue and doing this worked:
You should toggle the hold button from open to hold and back (like I said above), then hold the enter (middle) and the menu "button" in for 4 or 5 seconds... (The screen should go blank for a little while, than show the Apple logo for a while, then come up again with your default menu).
This wonderful piece of advice is from http://forums.macrumors.com/archive/index.php/t-128133.html Thank you Mitthrawnuruodo.