Hi there, I have a 3gs jailbroken with redsnow 9.15b3, on 6.1.3 and 5.13.04 and unlocked with ultrasnow. It seems to jailbreak ok, works for a bit (maybe a day or two; other times only a minute) but then, upon hitting the home button, the screen will dim a bit and become inactive. If I power off, the 'slide to power off' and 'cancel' buttons work, but all other screen buttons are frozen out. When I 'just boot', it solves the problem until I hit the home button again; if I re-install everything, same problem. If I power off and on again without the tethered reboot, all works fine (but the jailbreak of course!) - the screen brightens up and all is ok. It only happens when the jailbreak is applied. Any help would be appreciated!! Manufacture date is 29th week of 2010.