Has a simple video that shows you how this is done. The website has other useful information so you may want to take a gander.
We shown you how to backup your Mac with Time Machine. Here is a quick video we made to show you how you can quickly restore a file you have deleted… and emptied from the Trash. NOTE: Probably best to watch in HD and Full Screen … Read More
via Click For Geek
Then try restoring the device as new. It solved the issue for one poster in this thread.
Pondini suggests using Setup Assistant. It worked for the poster! Good luck! I have done this too and it worked great.
Two ways listed in this post to fix the issue. One is to rerun the installation for Snow Leopard and select the migration assistant. The second is to manually change the permissions on the files by selecting the get info and then selecting the permissions tab at the bottom. When you select All Administrators and read/write then everyone has permission to that file who is an administrator. Read more here.
This is a nice tale of a apparently dead iPod that was brought back to life. Click here to read how.