Thanks Boris

You seem to have set all the prop's as I have, and the code is essentially the same. This is weird, but no doubt something simple in the end.

Unfortunately I can't send you a "simple form" example as everything is classed.

>This works for me:
>

>PUBLIC oForm1
>oform1=NEWOBJECT("form1")
>oform1.Show
>READ EVENTS
>
>RETURN
>
>
>*
>DEFINE CLASS form1 AS form
>
>
>    Top = 0
>    Left = 0
>    Height = 85
>    Width = 186
>    DoCreate = .T.
>    Name = "Form1"
>
>
>    ADD OBJECT combo1 AS combobox WITH ;
>        BoundColumn = 2, ;
>        Value = 0, ;
>        Height = 24, ;
>        Left = 25, ;
>        Style = 2, ;
>        Top = 13, ;
>        Width = 136, ;
>        BoundTo = .T., ;
>        Name = "Combo1"
>
>
>    ADD OBJECT text1 AS textbox WITH ;
>        Alignment = 3, ;
>        Value = 0, ;
>        Height = 23, ;
>        Left = 30, ;
>        SelectOnEntry = .T., ;
>        Top = 47, ;
>        Width = 100, ;
>        Name = "Text1"
>
>
>    PROCEDURE Load
>        CREATE CURSOR Test (Fld1 I, Fld2 C(20))
>        FOR asd = 2 TO 20
>            INSERT INTO Test VALUES (asd, [Test ]+TRANSFORM(asd))
>        NEXT
>        INDEX ON Fld1 TAG Test
>        GO TOP
>    ENDPROC
>
>
>    PROCEDURE Init
>        thisform.Combo1.RowSourceType = 6
>        thisform.Combo1.RowSource = [Test.Fld2, Fld1]
>        thisform.Combo1.ColumnCount = 2
>    ENDPROC
>
>
>    PROCEDURE combo1.InteractiveChange
>        thisform.Text1.Value = this.Value
>    ENDPROC
>
>
>    PROCEDURE text1.Valid
>        IF NOT INDEXSEEK(INT(this.Value),.t.,[Test],[Test])
>           MESSAGEBOX([aaaaaaaaaaa])
>        ELSE
>           thisform.Combo1.Value = INT(this.Value)
>        ENDIF
>    ENDPROC
>
>    PROCEDURE Destroy
>        CLEAR EVENTS
>    ENDPROC
>
>ENDDEFINE
>

>Can you send me a simple form and data to see what happens?
>
>
>
>>No difference at all, I'm afraid.
>>
>>Even the combo is doing the same, when select from the combo - just get blank selected combo. Very strange when the other works fine!!!
>>