Thank you, Gail. I appreciate the additional information.

Fixing this particular system table in this particular case appears to have had no adverse affects in the test environment, so I think your comment about it not really being corruption hits the point here. I think now I will go get my copy of SQL Server 2008 Internals and read the DBCC chapter by Paul Randal you mentioned in the footnote of your article, and ponder this further.

--Doug