Has anyone had this problem? I had my iPod Touch (1G 3.1.1 JB) in sleep mode and when I hit the sleep button to bring it awake I just got the top bar to show up but the rest of the screen was black no wallpaper or "slide to unlock". It kept real time so it was not frozen and when I held the sleep/wake button the shutdown slider showed up but the touchscreen was unresponsive so I could not slide it. I ended up hold the power button until it shut off then after it booted again everything worked. It is not a big deal but I just wanted to know if others had this problem. I upgraded to 3.1.1 the day after pwnagetool was updated and this is the first problem I have had with the firmware.