This is the problem with Microsoft SQL Server 2005 Service Pack 2 Cumulative Update 5, This issue does not occur before you install SQL Server 2005 Service Pack 2 Cumulative Update 5. To determine whether you have SQL Server 2005 Service Pack 2 Cumulative
Update 5 installed on the server, run the following SQL Server
statement.
SELECT @@version
there will be hotfix available for this, refer this link for more information
http://support.microsoft.com/kb/952723