I?m sure there is a really easy answer to this but, I can?t find it. When I?m on the phone and I need to pull up the screen, to enter an extension or something, I cannot do it. I can push the power button but that disconnects the phone. All I can come up with is to plug in the charger which quickly turns the backlights on. What am I missing?? I appreciate your help. Thank you in advance