Formularios en ABAP R/3 Release 4.6C

Hello, i need to modify a form and i use the transaccion se71, my form have 2 pages and u know the section MAIN repeat in the 2 pages this is normal ok. But when i modify the section MAIN, this not change in the second page when i call it with a ABAP PROGRAM. In the mode modify in the se71 i see perfectly the modification but when i call the modify not change.

What can i do? please help me