KBA - UPDATE Statements May be Replicated as DELETE/INSERT Pairs & Diagnostics in SQL Server 2000 SP4 and in later versions help detect stalled and stuck I/O operations
The following pages were recently modified.
Source: Knowledge Base
Product: Microsoft SQL Server 2005 Enterprise Edition & SQL Server 2005 Standard Edition
Notification Contents: New and Major Modifications
UPDATE Statements May be Replicated as DELETE/INSERT Pairs
http://support.microsoft.com/kb/238254/en-US
Diagnostics in SQL Server 2000 SP4 and in later versions help detect stalled and stuck I/O operations
http://support.microsoft.com/kb/897284/en-US