I'm still running the supposed to be stable version CM 7.1 for SGSII and so far, everything is great except for the problem that when I exit an application using back button, the application still remains running in the background (including settings, theme chooser and about everything else I didn't exited using the in-app exit option). I'm using ES Task Manager to verify and kill the running applications. If I failed to do so, the apps continue to run in the background and eats up extra battery. What I want to know now is that, is this the default behavior of CM7? Or did I miss setting something so that when I exit an application using back button the application is actually really being terminated? I know the setting wherein long press on back button to terminate the app but I really want to set the exit using single short press in back button. Any idea? Thanks in advance..