The screen randomly starts doing all kinds of things by itself. It acts like someone is typing on the keypad for no apparent reason, or starts zooming, going to different pages, changing settings. Sometimes the screen locks up. Sometimes the sliding ring is unresponsive.
I have found that usually pressing the lock button and starting over will usually correct it temporarily, but almost always comes back.
I have tried a battery pull, I have done the screen clibration, I have done the soft reset, does not seem to matter.
