If you are unable to sync your iPod don’t try restoring or anything just yet as the problem might be extremelly simple to fix. I noticed that on my Windows XP laptop that if I plug my iPod into different USB ports that things act differently. I have three USB ports on the back of my Dell d420 laptop and I installed my iPod Touch while using the port in the back all the way to the left. Everything works fine if I sync using this port however if I try using one of the other two USB ports on the back of my laptop I get the following errors.
The first pop up error states the following:
iTunes cannot sync information with the iPod “iPod Name” because syncing has been disabled on this computer. Do you want to enable syncing?
If you do not enable syncing, iTunes will not be able to sync contacts, calendars, bookmarks, or mail accounts to your iPod.