I've been having this problem for a while, and I don't know when it started. My sysNAND is 4.2, and my emuNAND is 9.9. This happens both when I load it with Gateway and with rxTools. Basically, any time I open one of the system applets--web browser, friends list, game manuals, etc.--it works fine at first. But then, when I attempt to exit said applet, it freezes. If I do it by pressing Home, it takes me to the screen where it says "HOME Menu", but it doesn't actually load the menu; it just stays frozen on that screen. If I press the Power button, it fades to black like normal, but it just freezes then as well; it doesn't show the "Software closed" screen. This happens regardless of whether or not I have something suspended. Has anyone else had this problem and been able to fix it?