David,

BoundTo is default (.F.)

Here's the code in Form.Init :-

* Setup the ProductList ComboBox
messagebox('531 : Setting the RowSource property for cboProductList')
THISFORM.cboProductList.RowSource = 'ProdList1.Name,Contents,Product_ID'
messagebox('532')
THISFORM.cboProductList.VALUE = ALLTRIM(STR(ProdList1.Product_ID))
THISFORM.cboProductList.REFRESH

It's padded with some break points, and the talbe is fixed to ProdList1 for TS.
The form RUNs fine, but the EXE version just breaks after the 1st MESSAGEBOX.

If it's though, just ignore it, I'll use the AddListItem or AddItem method (which I use OK in other areas). Really puzzles me - can't understand the problem.