Color of container name in screen painter - problem

Hi, I have written a program to collect records from the database and display them in the ALV Grid using OOP Methods. I have created a screen for this and called it in my program. It is working but in the screen painter the name of the container control is in red color. Does it mean that there is something wrong with it? The program works perfectly all right. And also the 'Back', 'Cancel' and the 'Exit' buttons remain disabled in the toolbar in the final output window. If anybody could tell me how to make them enable then it would be great.

Thanks,

Pushpa