Greg,

<< I couldn't reproduce this issue at first in a simple project.  Then I set
the KeyFieldNames property of the DBTableView in the cxGrid and the problem
appeared.  I'm using a query that references the Contact table (Just "SELECT
* FROM Contact").  KeyFieldNames was set to "ContactID".  ContactID is a
computed column. >>

I should have read your description here first.  Yes, it's the computed
column that is the issue - Build 9 or 10 involved some changes to how row
values are referenced, and this caused this problem with computed columns.

A fix will be in B13 shortly.

--
Tim Young
Elevate Software
www.elevatesoft.com

Sean:

I'm going to correct myself.  The ID field is an autoincremented (generated) Integer.  DBID is a SmallInt.  ContactID is a BigInt wiht a calculated value of:
DBID + (ID * 100000).