Subscreen not getting refreshed on press of a tab

Hi all,

I got a Main screen with fields A and B and a tabstrip on it.

The tabstrip contains 4 tabs (subscreens).

Each subscreen displays alv tree display on press of a tab.

Now when I open the main screen the data is properly populated for all the four alv tree reports on the subscreens with the criteria being the default values on the fields A and B. Also now when I press any of the tabs the respective report is displayed.

Now suppose I select and change the field A or B and press enter.

The alv for which the tab is active is shown on all the four tabs when i press any of them. No event is triggered.The subscreens are not getting refreshed. I dont know what the problem is.

Please guide me.

Regards,

Mozila