I tried to run the differentail backup today and got this message
Job ended: 30 March 2009 at 16:36:12
Completed status: Failed
Final error: 0xe0000307 - Microsoft SQL Server supports only full backups of the master database. Differential and transaction log backups are not supported.
Consult the Microsoft SQL documentation for more information.
Final error category: Resource Errors
so does this mean i have to do a full backup of SQL even when running a diff backup?