So here is an odd one. I've noticed my iPhone 4 acting weird with the proximity sensor so I did the full reset of my phone. Now since then, I've gone to setup my lock code again and thats no problem. Expect the only option I see is immediately... I dont get to choose anymore the frequency of the passcode. I've tried to reset again and turn my phone on and off. No go. I've changed the password, turn the code on and off. No go. Anybody else run into this?