Hi Randy,

>combobox has 3 fields from "Table B" as its rowsource (with rowsourcetype
>set to 6-Fields).

Using a Rowsource of 6-fields or 2-alias for a combo in a grid is fraught with problems. Use a Rowsource of 3-SQL statement or 5-array instead and you will have more luck with less frustration.

pamela