I'm sure I'm not the only but I couldn't find anything using a variety of searches. Many times, when I'm making a call and have to use the touchscreen dialing keypad for menu items (i.e. voicemail) when I take my phone away from my ear the screen doesn't light up and I can't view any buttons to push. I've tried using the auto brightness function and without it. It is especially prevalent when it is light out. Is this a glitch or is there a setting I can use. I end up having to cancel the call and try again. Annoying.