Hi All, Starting earlier today, my iPhone 4 has been acting like someone is pushing the power/lock button. Randomly the phone switches to the "slide to power off" screen. When I push the home button the phone takes a screen capture. The phone will then sometimes shut down and will not start back up. I was able to get it to come back by syncing it. I restored it and installed the 4.0.1 at the same time. It was working fine for about 2 hrs, now doing the same thing again. Any ideas? Thanks for your thoughts and help.