>>WAG, but do you by chance have the LinkMaster, ChildOrder and RelationExpr properties of the child grids set. If so, you need to rest them.
>
>All these properties are cleared. I even cleared them out when I disable the relation.
>
>Thanks for the feedback!

Another WAG, grids have a problem refreshing themselves if they don't have focus. Try issuing:

Grid.SetFocus()
Grid.Refresh()

for each child grid.