Keep your system up to date with the most recent cumulative update package for SQL Server 2005 SP4. This package contains all of the SQL Server 2005 hotfixes that have been released since the initial release of SQL Server 2005 SP4.
- CU#2 KB Article: http://support.microsoft.com/kb/2489409
- Understanding Incremental Servicing Model for SQL Server
- SQL Server Support Information: http://support.microsoft.com/ph/2855
Previous CU KB Articles:
- CU#1 KB Article: http://support.microsoft.com/kb/2464079
SQL Server Sustained Engineering