Start with reseting your iPod Touch (no data or settings are lost - unless they are already lost)
- Hold the sleep/wake button at the top right of the device and the home button at the bottom center of the face at the same time.
- Hold both until you see the screen go black. In some cases, you may need to keep holding them even after the red power off slider appears. If it does, just keep holding it.
- Wait until the white Apple logo appears and release both buttons.
If that does not help, add a little history of how this problem occured.