Actually the scenario is :
a) A User open up a screen (suppose SCREEN A) by writing its transaction code.
b) Then user write another transaction code to access another screen (suppose SCREEN B).
c) When SCREEN B comes up, some of the contents of SCREEN A remains on SCREEN B.
So, i wanted to know what should i do so that whenever SCREEN B is called by writing its trans code, previous SCREEN contents doesn't get scattered on SCREEN B.