>As Mike says, the first column is displayed period. I had this same problem last week having a PK in first column. Rethink time!
>

What's wrong with simply setting the order of fields displayed in the sequence so that Description occurs first; depending on what the RowSource for the ComboBox was, it might be as simple as switching the order of fields in a SQL Select, or changing the order of things is the RowSource for an Alias or Fields type list? In dire situations, you can even pull a composite field for the first column containing both Code and Description, and then a second column of just Code - bind on the second column, and now everything is displayed at all times.