When this happens, the easiest fix is usually to just restart it.
If all else fails, restoring your i Pod to factory settings will fix most problems.
In some cases, you may see the progress bar complete, then start again.
When Spy Hunter does not activate or update properly, it is often because of a problem on your computer.
If you need more space for a wireless update, you can update using i Tunes or delete content manually from your device.