IPod doesn't appear in XP

Hi daycing...

First, make sure your iPod is fully charged and then toggle the Hold switch on and off.
Reset, Retry, Restart, Reinstall, Restore
Go through the 5 R's of iPod troubleshooting, which will often solve your issue. If you're still experiencing the issue after going through each of the steps, then continue for more suggestions.
To determine if your iPod syncs via USB or FireWire, check the table in the Additional Information section below.
Tip: If you are using Windows XP and have recently installed a Service Pack, check the Device Manager. Click the Start menu and click Run. Type "devmgmt.msc" and click OK. If no devices appear in the Windows Device Manager, go here.
Still can't see your iPod?
Several things could keep iPod from appearing in iTunes or Windows Explorer. The most likely causes are listed below-you'll find information for both USB and FireWire (IEEE 1394) iPod connections. Check each one starting from the top of the list to see if that is what's keeping iPod from appearing.
Make sure your computer meets the iPod system requirements
Make sure that your computer meets the system requirements to use iPod with Windows.
If your iPod displays an exclamation point folder or sad iPod icon
If your iPod displays a folder with an exclamation point icon or a sad (unhappy) iPod icon on its screen, or if your iPod doesn't appear in iTunes or My Computer, follow these instructions to resolve the issue.
Charge the iPod and make sure it is getting power
Your iPod must have enough of a charge for your computer to recognize it. Connect your iPod to its power adapter or to a high-power port on your computer to charge your iPod if the battery is depleted. If your iPod is connected through FireWire but isn't getting power from the FireWire bus, your computer may not recognize it.
Secure the iPod's connections
Make sure that there is nothing physically inside or blocking your computer's USB (or FireWire) port, and that the cable connections to your iPod and computer are secure.
Note: If you're using an iPod shuffle (Second Generation), make sure the iPod is inserted securely in the iPod shuffle Dock.
Restart your computer
Sometimes simply restarting your computer can resolve issues.
Connect iPod to a high-powered USB port
If you're connecting an iPod, iPod mini, or iPod shuffle to your Windows computer, make sure that you're connecting it to a high-power USB 2.0 port on your computer.
If you're connecting the iPod to a Windows laptop computer through USB, connect the laptop to a power outlet before connecting your iPod. Also, see iPod not recognized when connected to Windows laptop over USB to be sure that your USB ports are supplying enough power.
Typically, USB 2.0 high-power ports are located directly on your computer. Try connecting your iPod to another USB port on the computer.
Avoid connecting the iPod to a USB hub. Connect the iPod directly to a USB 2.0 port on the computer. If a hub must be used, make sure the hub is USB 2.0, and that it has its own power supply. Also, make sure the hub is connected to a high-power USB 2.0 port on your computer.
If the issue persists, try disconnecting other USB devices from the computer such as printers, cameras, scanners, external hard drives, and USB hubs to determine if there is a conflict in the USB chain.
Check whether your iPod's cable functions properly
Make sure that you are using the cable that came with your iPod. Some third-party cables may not work properly with iPod.
Make sure that nothing is in or blocking your computer's USB or FireWire port.
Check the connections to make sure that the cable is completely plugged in.
Try another known-good FireWire or USB through Dock Connector cable if available.
If swapping out your old cable for another resolves the issue, then your original cable should be replaced.
Place the iPod into Disk Mode
Try placing the iPod into disk mode to see if it is recognized by iTunes, or My Computer.
Check which format iPod is in
iTunes for Windows only recognizes Windows-formatted iPods. You cannot use a Macintosh-formatted iPod with a Windows PC. To learn for which platform your iPod is formatted, follow these instructions.
Check whether your computer's port functions properly
If another FireWire or USB port is available on your computer, try connecting your iPod to it.
If your computer recognizes your iPod after trying a different port, the original port could be faulty.
Note: iPod will not automatically wake up if you connect it to a 4-pin FireWire port. You must press the Select button (the wheel's center button) on the iPod to wake it from sleep.
Check if Windows confuses iPod with network drive
If the drive letter after iPod ("E" in most cases) is mapped to a network drive, both Windows Explorer and iTunes may exhibit strange behavior in relation to the iPod (including preventing iPod from appearing. See "Windows confuses iPod with network drive and may keep iPod from mounting or songs may seem to disappear" for more information.
Your USB or FireWire card isn't recognized by Windows
Make sure that Windows recognizes your USB or FireWire card. Follow these steps to find out if Windows sees your card.
Third-party software may be causing conflicts
Some third-party software (such as security software) may prevent your computer from recognizing your iPod.
Try adjusting the settings of such software, or temporarily disabling it, to see if that resolves the issue.
Also, try booting Windows to Selective Startup mode to disable any third-party startup programs and services, and isolate which software may be causing the issue.
Install or reinstall iTunes
Download and install the latest version of iTunes.
In some cases, you may need to completely uninstall and reinstall iTunes.
Make sure FireWire card is a WHQL-certified IEEE 1394 card
Only certain iPod models sync via FireWire. Refer to the table in the Additional Information section to make sure your iPod can sync via FireWire.
If you have a FireWire (IEEE 1394) card installed in your computer and are using it to connect your iPod, make sure that the card is Windows Hardware Quality Labs (WHQL) certified. If it isn't, your iPod may not be recognized, or you may not be able to send music to the iPod.
If you're not sure about your card's WHQL certification, check the inbox material that came with your FireWire card or contact the card's manufacturer. You can view a list of WHQL-certified cards on the Windows Hardware Compatibility List website. To view this:
Go to the Windows Hardware Compatibility List website.
Click on the link that corresponds with your Windows Operating System to view the compatibility list.
Select your Operating System build, and then from the Product Categories pop-up menu, choose 1394 Controller.
Click the Search Now button.
You can also check the list of recommended FireWire and USB cards that have been tested by Apple with iPod and Windows XP (Apple sells FireWire cards that are compatible with iPod at the Apple Store.).
To rule out an issue with your FireWire card, try connecting a different FireWire device to the card to see if your computer recognizes it.
Check for a conflict in the FireWire chain
Only certain iPod models sync via FireWire. Refer to the table in the Additional Information section to make sure your iPod can sync via FireWire.
Your computer may not recognize your iPod if there's a device conflict in the FireWire chain. To see if this is the case:
Disconnect all devices from your computer's FireWire ports.
Connect your iPod to your computer's FireWire port.
If your computer recognizes your iPod, you should troubleshoot for FireWire device conflicts.
There may be an issue with your computer
If another computer is available, verify that the same issues happen with the other computer. If the other computer recognizes your iPod, you may want to troubleshoot for issues with your original computer.
Your iPod needs service
If after following these steps your computer still doesn't recognize iPod, see the iPod Service website to arrange for service.
Please Rate Me

Look inside the slot that you plug in your iPod, is there an orange piece of paper? If there isn't, then your iPod might have been damaged from something (such as water getting inside) which may prevent it from being recognized by your USB slot. Every Apple product does this and it voids the warranty I believe.

If there is an orange piece of paper visible, try going into "my computer" to be sure it's being recognized by your computer as a whole. If it says "_____'s iPod" then it can recognize it and it is iTunes that is causing the problems. Try a reinstallation and replugging your iPod in and out a few times.

Hmmmm check wit the data cable once.. try using different USB ports els different data cables itself..

- if cable workin fine den try doin a hard reset.. i.e with d iPod plugged in 2 d comp try resetting iPod..

-Els check if ya iPodz getting recognized in iTunes.. if itz gettin not gettin recognized reinstall the itunes software.. or follow dese steps-
1>www.apple.com
2>Click on the tab SUPPORT
3>Select iPod+iTunes
4>Select iPod nano 4 r 5th gen
5>U'l find many divisions as get started troubleshooting n al.. under troubleshooting d 3rd link i.e iPOD DOESNT APPEAR IN ITUNES n follow d steps

-if itz gettin recognized in iTunes n not gettin recognized in comp den follow d same steps til troubleshooting.. under dis go to d 4th link i.e iPod is not recognized properly by computer when USB drivers are not installed properly r out f date..

Try wit al dese steps.. hope sumthin works out 4 u..
If none f dese work den derz another step to it.. may b disk mode step which am not sure f.. try finding out regardin diskmode n may b dat'l help ya..

I found this article on apples web site I thought it might be helpful

http://support.apple.com/kb/TS3218

JVC KS-PD100 iPod Interface Adapter (257KSPD100, sold separately). This optional iPod Interface Adapter supports audio playback for the following iPod models - iPod click-wheel (3rd gen), iPod photo (4th gen), iPod mini (1st/2nd gen), iPod nano (1st/2nd/3rd/4th gen), iPod video (5th gen), and iPod classic (80/120/160GB). The KS-PD100 is not compatible with the iPod touch (1st/2nd/3rd gen), iPod nano (5th gen), or iPhone (2G/3G/3GS). This iPod interface will also not charge the iPod nano (4th generation). *Apple firmware updates may change functionality results.

There u go.....

Reset your iPod:

1. Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.)

2. 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.

Then connect it to your computer and see if it is recognized by iTunes.

If not, try other USB ports on your computer, especially any on the back panel.

try it on xp, otherwise the cable or ipod may gone bad...

Try reseting your ipod by holding centerbutton and menu option for about 10sec and try connect to PC..... further questions give me reply.....

USB device not recognised" - means windows needs driver to function. As soon as you connect USB device it check driver in cache it is available it detect smoothly you can perform else it generate errors.

first to instal driver from CD

Try connecting it to a different computer with a different USB cable. If it still doesn't work, it'd be helpful to know more details (does the iPod work properly other than that, is it possible that the pins at the bottom of the iPod where you connect the USB cable are damaged?).