DEFINE POPUP ListTest DEFINE BAR 1 OF ListTest Prompt "Rick" Font "Times New Roman" ,12 DEFINE BAR 2 OF ListTest Prompt "Chris" Font "Times New Roman" , 8 DEFINE BAR 3 OF ListTest Prompt "Dan" Font "Arial" , 12 STYLE "B" COLOR ,W+/G this.List1.RowsourceType = 9 this.List1.RowSource ="ListTest"The contents of the listbox are based on the bars in the popup, which means that to change the contents of the listbox, you must redefine the bars of the popup. It also means that the listbox only has one column and that whatever you set controlsource to will only have the caption of the bar as the value. Like I said, it is limited.