ALV Grid Problem - User command Back Cancel Exit

Hi Guys,

I was trying to use the ALV grid and my problem is, on the grid display, when i try to hit the back button or exit or cancel, then a blank screen appears and i need to hit either back or other buttons one more time to go back to the selection screen.

Is there any thing I am missing here? Please suggest me the solution.

Thanks in advance,

Srinivas.