The controlsource is not the PK, it's the LookupCode. The whole point of this is the PK should be completely ignored by the combobox.

>Nigel
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>if your controlsource is the PK and you enter the fields in the rowsource in the order mentioned by Jess then you want boundcolumn = 2 then the combobox will display the lookupcode and description of the appropriate PK from the lookup table.
>
>Nick Mason