Computer won't recognize ipod nano (fatty)

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Do you have itunes program installed on your computer?
Are you sure those usb cables are the right one's for your ipod nano?
Only certain types will fit the nano's, get one that say for ipod nano.

Listen to see if you hear the drive in ipod spinning. Not clicking, you should hear a wirling sound.
if no, bad drive.

put your ipod in disk mode by following these steps.
press and hold the Menu and Center buttons on the clickwheel. when you see the apple appear, switch your fingers to the center and play/pause buttons.
whena check mark appears plug it into you computer and it should detect and mount.
add music and have fun.

Hold down the play pause button for 30 seconds to reset the ipod.

Hi,
If your computer is recognising other ipods and not yours there is a possibility of somethin being wrong with your ipod.You can always get it replaced.Or else maybe you should check the USB cable you are using to conect.
Finally try your ipod on another computer.
This oughta help you arrive at a conclusion.
and if i helped u solve ur problem in any way...please help me by clicking on the fixya rating.. 
thank you.

Install the drivers for your ipod specified. Try changing the USB cord as next solution.
Dont forgrt to rate this

restart your ipod then the ipod will be start

try this
1. plug into computer
2. hold down select buton and menu button until restarts then only let go of menu button
3.itunes should recognize ipod in recovery mode, then jus restore in itunes

here are some links on how to resolve this problem. it can be frustrating.
http://docs.info.apple.com/article.html?artnum=93716

http://www.apple.com/support/ipod/five_rs/classic/

try that... i had the same problem on mine and never got it quite to work until i reformatted it. it worked great on my mac though when it wasnt working on my pc. hope this works for you