I recently updated my DROID RAZR MAXX operating system to 4.1.2. After the install, I noticed that my screen keeps flickering on and off when my hand (or anything for that matter) comes close to the screen. I did some reading online and I think the "proximity sensor" (if that's the correct terminology for it) is on ALL the time and not just when on a call. It is quite annoying because when I'm playing games, usually, the screen is forced to stay on no matter where I touch or hold the phone, but now if my thumb or anything comes close to the sensor, it turns the display off until I move my hand away, then it comes back on. Has anyone else had any problems with this and if so, what did you do to fix it? Is there a way to downgrade to the previous OS if there is no fix for this?