I just got a Galaxy S2 LTE phone from Rogers in Canada, and often when I unlock it or try to hit the home screen, the screen turns black and unresponsive for a long time, sometimes requiring a restart. I also got an error message a while ago saying the TWlauncher froze and to Force Quit it, so I Googled what that was to try to find the fix, and people with the same problem said get Launcher Pro or other launcher and delete TWlauncher. So I did that, but the problem persists. Does anyone know a fix? I would like to avoid a factory reset if possible.