About once or twice a day, when i click the lock button to turn my phone on it dispalys the screen very very dim. I then have to press the lock button two more times to get the brightness correct? Is this just a prob with the 3GS. My bud and I both got our iphones on release day and his has constantly done this. Mine didn't start doing it, but the replacement I received last week does it? Does anyone recommend anything that can be done besides restore? Or is this just a hardware issue?