You can try restarting the iPod and then restarting the computer and that should work If it doesn't I'm sorry, but it worked for me.
Plug it into your computer to unlock your iPod.
You use the cord that came with your iPod and connect the cord to your iPod and computer
USB is the connector you use to connect iPod or other device to a computer. then it means connect your iPod to your computer using USB
All you need to connect your ipod to the computer is your ipod cable
You need an USB cord to connect it. When you have that done, you will need the Ipod modem and program on the computer. Then, connect and drag the videos from the Ipod into the computer.
Usually when you connect your ipod to your computer it will sync with iTunes installed on your computer and it'd do the same for your new iPod.
If you have downloaded new apps on your iPod which are not on your computer, connect your iPod to the computer with the cable supplied at purchase and allow it to sync.
Connect it To your computer on iTunes
If this is when you first get it, that means you need to load music on to your iPod before you can do anything. If this is when you push the iTunes App, that means that you are not connected to Wi-Fi.
Use the cable that came with the iPod Touch to connect it to the computer, and the iPod must be on for it to charge.
Connect your iPod to your computer and sync it.
You should connect the iPod to the computer and open up iTunes and see what iTunes has to say about the iPod.