Troubleshooting the ‘Fatal Error’ message in Amazon Unbox Video Installation If you who have ever tried to install Amazon Unbox Video on your Vista laptops, you will know about the troublesome installation process that often shows an error message of the type: Error: -1603 Fatal error during installation. Consult Windows Installer Help (Msi.chm) or MSDN for more … [Read more...] about How Can I Install Amazon Unbox Video on Windows Vista