officehint dont show message

hi i've AdvOfficeHint and i've write this code with TableImg Is TImage32
 
  TableImg.Hint:=DM2.dstTables.FieldByName('Booking_Name').AsString;
  If ckbShowInfoTable.Checked Then
     TableImg.ShowHint:=True;
in a event hintBeforeShowHint i have :
 
  If AControl Is TImage32 Then Begin
    UseOfficeHint:=True;
    //AHintInfo.Title := 'Button title';
    AHintInfo.Notes.Text := AControl.Hint;
    //AHintInfo.WideTitle:='xdcc';
  End;
the event fire but DONT display eny message on screen on mouse over !!  Can u help me ?
 

I have been unable to reproduce this.

Is this on a regular VCL TForm?  If a problem persists, please send some sample source project with which we can reproduce this here.