I switched from the simple 4 digit numbered passcode to the lettered one to show a friend what it does and now It wont let me switch back to the "simple" passcode. Basically the "on/off" switch is not highlighted anymore and cant switch back. Any work-around on this before re-installing ios6? I have even gone into "change passcode" to see if that will let me activate "simple passcode" but it just makes me change the current lettered code. Eeeeek.