Many iPod shuffle issues you may encounter can be easily resolved by performing a software restore of the iPod. Examples of some of these symptoms can be found in this document.
If you are using iTunes 7 or later, click here.
There are two ways you can do a restore: Download and install the latest iPod Updater software, or restore your software using the iPod Updater application that came on your iPod CD. The benefit to have the most recent version of the iPod Updater is that some issues may be resolved with a more recent updater
Warning: The restore process cannot be undone. All of your songs and files on the iPod will be deleted. Always make a backup of your important data.
To update or restore iPod shuffle with the latest software:If you're using iPod Updater and it doesn't see that iPod shuffle is connected to your computer, turn iPod shuffle on (by moving the switch to either the play in order or shuffle settings) and then off again.
If you want to restore iPod shuffle software but you don't have an Internet connection, use the iPod Updater application that was installed on your computer when you installed the software from the iPod CD.
To restore iPod shuffle software using iPod Updater that came from your iPod CD:
For steps to restore other iPod models, click here.