CALL SCREEN * STARTING AT * SCROLL

Hi Experts !

I display a dynpro with CALL SCREEN '3000' STARTING AT 5 2.

The computer screen is less hight than the dynpro

The dynpro has a table control at the bottom of the dynpro

I do scrooll at the bottom of the dynpro, and then the table control appears

When I do scrooll in this table control, at the bottom of the dynpro, the dynpro

scrolls at the initial position, to the top , and then, the table control at the bottom is missing.

This behavior is wrong

What can I do ?

thak's in advance