Diagnosis
You moved a column element and its corresponding title element from atable control.

System Response
The title element has been deleted, since it coulde no longer beassigned to a table control column.

Procedure
If the title element was no longer required, you can ignore thismessage. If you wanted to keep it, undo the move operation by choosingEdit -> Undo, and move the title element to another position before youmove the original column element.
Note: If you move the column element directly into another tablecontrol, the title element is moved with it and is retained, along withits association with the column element.