Motorola Droid X :: Power Up Does Not Finish

Last night I changed the wallpaper to a new picture.Following the completion of that, the screen went black.Battery was not low.I plugged in the charger and the screen came back on but was locked up.Unplugging the charger made it go black again.I left it on the charger overnight and nothing had changed this morning.I removed the battery for a few minutes then replaced it.I turned the phone on and start up seemed normal until the four nav buttons at the bottom lit up and the screen dimmed.A few seconds later the screen went black and nothing I tried would bring it back on, short of removing the battery and starting over, again.