Jailbroken, 4.3.1 untethered. Anytime I get a text message (sms or mms) and the phone is locked, it unlocks and the little preview screen comes up showing I have a msg from so and so...HOWEVER, the screen will stay lit up, and the phone will not lock unless I lock it. Ofcourse, if I'm not near my phone, this is a HUGE battery drain. Is there a setting somewhere I am missing? I have played with multiple configurations, and nothing has helped. Thank you for your time.