[AccessD] Requery ListBox doesn't work

Two identical lines of code to requery a ListBox, one works, one doesn't.
Both on the same form, both reference the same ListBox.
The one that works is located on the on click event of a button to delete the current record.
Delete the record - requery the ListBox.  Works.
The one that doesn't work is on the after update event of a text box.
Enter text - move to next text box - requery ListBox.  Doesn't work.

A2K - I also imported everything into a new database container.  still didn't work.

Any idea why?

Thanks in advance,
Jim