I've only had my MY for 2 weeks now, and I'm curious if others have experienced this, too.  A day or two after a recent software update, I got in my car and the screen was black, even after putting the car into reverse.  I tapped the screen near the lower left corner and the A/C came on showing that the screen controls were working, I just couldn't see them.  I did the two scroll button reboot and the screen finally came back on.  Just want to know if this is something that happens often, rarely, or what?