Yeah I tried it all... SD Card in place, Battery pulled and put back in etc... The screen doesn't do anything. The buttons below it light up and then it vibrates and my green light in the upper right blinks but the screen does nothing...
You should jump over to the "Verizon Tech Here" thread... Viper may have a better idea of how to help you.
when you go to the store just say your screen stopped working and you don't know why.