This just started happening today while I was at work.....I would hit the menu button to bring up the Unlock Pattern and nothing. So, I would hit the power button and it would come back on. This happened abut 4 more times throughout the day, but every time I went to hit the menu button, my LED would be green. I find it weird that the LED is flashing like normal, then the phone is off. Has anyone else had this problem? This is my second G1 by the way!