ошибка в программе непонятная

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "Animate"
#pragma link "GIFCtrl"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{

}
//---------------------------------------------------------------------------
void __fastcall TForm1::Rab_stolClick(TObject *Sender)
{
OpenPictureDialog1->Title = "Открыть картинку";
  if (OpenPictureDialog1->Execute())
  {
  Rab_stol2->Picture->LoadFromFile(OpenPictureDialog1->FileName);// загрузка картинки
 Rab_stol2->Left=10;
 Rab_stol2->Top=10;
  }


}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  Rab_stol1->Picture->LoadFromFile("sym.gif");// загрузка верхней полосы
  Rab_stol1->Left=10;
  Rab_stol1->Top=300;
}
//---------------------------------------------------------------------------