DataGrid Debug (missing data)

I am sure I am missing something very basic. :D
Anyway, here is the setup:

After login I clear all contents and create the following basic structure:

StackLayoutPanel
    LayoutPanel
        TabLayoutPanel
             FlowPanel (Place holder for future)
             FlowPanel (Place holder for future)
   LayoutPanel
        TabLayoutPanel
             CustomList (Widget: UiBinder Composite)
                  DockLayoutPanel
                      center:DataGrid
                      south: HorizontalPanel
                           SimplePager
                           PageSizePager
             FlowPanel (Place holder for future)
             FlowPanel (Place holder for future)

Symptoms:
-- Table Header is Displayed
-- Pager stuff displayed
-- No entries in table displayed
-- Via Firefox checked DOM and no TR for any data present
-- In hosted mode, checked the return call from the server and verified the following:
** raw data present
** ListDataProvider has data
** calls to ListDataProvider.addDataDisplay has no errors
** Tried ListDataProvider refresh and redraw

Any other ideas or places to check?

Tim

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