I have iPod Touch 3.1.3 3G. I have installed Background + proswitcher. Now problem is that suddenly the native apple music player doesnt run in background. When I try to multitask to another app say Safari then the music player closes. Help! Edit--- even after coming back to homescreen without running any other app , the music player exits. Another edit --- even native video player exits when trying to switch to another app using proswitcher. And only after uninstalling Proswitcher I can run music player in the background using native support.