I just did a real quick test Combo Box on a Test Form. I used the Combo Box Wizard to set it up with 4 fields.
It all worked really well.
Does your Row Source for the Combo Box in which you want to see multiple fields have a 'Select' statement that selects all the fields you need to see?
For instance, this:
Code:
Me.ComboComplaint.RowSource = "Select PartNumber From Combobox"
would only return the PartNumber for display in the ComboCompliant box.
If you wanted it to show more fields, you would do something like this:
Code:
Me.ComboComplaint.RowSource = "Select PartNumber, Field2, Field3, Field4 From Combobox"
Hope this helps!