My ipod has frozen, how do i reset it

Try a hard reset by holding the middle button and the play pause button for 5 seconds ipod should then restart normally

it is a hardware problem....the keypad cable might have snapped....if you've warranty for this thing then use it else if you're comfortable opening up the ipod yourself respond and i'll give you a step by step guide to open it up.

How to reset iPod Nano if it is not responding or frozen.
Hold down the Center and Menu buttons simultaneously. The screen will start to melt away. Then you will see the Apple appear on the screen.

The iPod has been reset sucessfully.
Music files should still be saved, but some customized settings may be lost.

If that doesn’t fix your problem, try a hard reset by holding down Menu and Play/Pause simultaneously for about 10 seconds. A hard reset will clean all data off the unit.

Start by resetting the iPod
Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.) Press and hold the Menu and Center (Select) buttons simultaneously until the Apple logo appears, about 6 to 8 seconds. You may need to repeat this step. Tip: If you are having difficulty resetting your iPod, set it on a flat surface. Make sure the finger pressing the Select button is not touching any part of the click wheel. Also make sure that you are pressing the Menu button toward the outside of the click wheel, and not near the center.
If the above steps did not work, try connecting iPod to a power adapter and plug the power adapter into an electrical outlet, or connect iPod to your computer. Make sure the computer is turned on and isn't set to go to sleep.

If you are still unable to reset your iPod, use only one finger from one hand to press the Center (Select) button, and one finger from the other hand to press the Menu button.
When you reset iPod all your music and files are saved, but some customized settings may be lost. Date and time are preserved (unless the iPod reset itself because it had no power and then was reconnected to power). Other customized settings, such as Bookmarks, On-The-Go Playlists, Shuffle, Backlight timer, and so forth are preserved from the last time the hard drive turned on.
If this does not work to resolve your issue, please do let me know :)

have you tried to reset the ipod yet? I've included a step by step below just in case you are unfamiliar with reseting your ipod. Many user are LoL ;)


Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.) Press and hold the Menu and Center (Select) buttons simultaneously until the Apple logo appears, about 6 to 8 seconds. You may need to repeat this step. Tip: If you are having difficulty resetting your iPod, set it on a flat surface. Make sure the finger pressing the Select button is not touching any part of the click wheel. Also make sure that you are pressing the Menu button toward the outside of the click wheel, and not near the center.
If the above steps did not work, try connecting iPod to a power adapter and plug the power adapter into an electrical outlet, or connect iPod to your computer. Make sure the computer is turned on and isn't set to go to sleep.

If you are still unable to reset your iPod, use only one finger from one hand to press the Center (Select) button, and one finger from the other hand to press the Menu button.

i m have a messae in my ipod:
HP DETECT
HP FAIL

http://www.command-tab.com/2006/03/31/fixing-a-frozen-ipod/

Try resetting iPOD, this worked for me. Had the same problem before in Vista. Googled for solutions which included updating your iTunes application with the latest version and all, got nothing until bumping into this finally. No worries, resetting doesn't mean you're also deleting your precious mp3s, this process just restarts the device just like when you reboot the pc.

To reset iPod, iPod (scroll wheel), iPod (touch wheel), and iPod (dock connector)

1. Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.)
   
2. Press and hold the Play/Pause and Menu buttons simultaneously until the Apple/iPod logo appears, about 6 to 8 seconds. You may need to repeat this step.

complete link to this article:
http://docs.info.apple.com/article.html?artnum=61705