Hi Thomas,

Unfortunately it appears that your SQL Server installation has become corrupt. Have you installed any other software (even antivirus updates) between the time it was working and now? Microsoft says the remedy is to uninstall SQL Server and reinstall it to reset its configuration and associated application files back to defaults. Have you tried doing this with the SQL Server Express setup on the disc that accompanies the book?

Sorry I can't help you any further with this one!

Andrew