Anyone else having this problem? The proximity sensor seems to have a mind of its own, it works maybe 1 out 10 calls I make. Normally when I make a phone call and put the phone to my ear the display will stay on for maybe 5 to 10 seconds then turn off, once I pull the phone away from my ear I have to push the power key to turn the display back on whether still on a phone call or the if the call ended. I called sprint, no help at all. I went to a sprint store, they went through the display settings, it started working right, I asked what she did, she said she didn't know. what? I looked at the display setting and nothing was changed so I have no clue at this point. Please help!