The other day, I got distracted from messing around on my Emerald cart and looked away.. when I looked back, my screen had turned black. No music played; it was frozen. When I turned it off, the screen didn't shift in coloration or change at all. Later, this actually reoccured in front of my eyes. I had just exited a battle when suddenly the screen just turned blank. I have no idea what is going on, so I'd like to consult you guys! I've never encountered anything like this before, so I'm super curious.