>When user picks up some item from the list protion, what do you have in the text portion of combo?
>
>I have the value of the firs column ( 60 or 90 or 120 or 150 ).

What's data type of this? Character, right? So you must supply the same data type i.e. string and BTW of the same length, if you have any spaces when you define the rowsource. It's the reason why it's much better to populate combo using AddListItem.