>>How big is the table? Can you use array or value instead? If yes, then you can make the item disabled by adding \ before the item.
>
>The table has five items. I could probably use value, but I need to display the descrip and the activity type in the combobox. The activity type is saved in the controlsource table.

As long as you're using array or a value, you can change the item with \ and make it disabled.