I just installed the newest version of retropie onto a brand new pi with 16gb sd card today. Setup went off without a hitch. After trying to use the scraper for box art, the screen went black once I chose the option for the system to choose box art. It stayed black for quite some time and I manually pulled the power. Upon restart I tried to exit emulation station to console and the same thing happened again. I have tried exiting emulation station through the menu and by pressing f4 with the same result – black screen. I know load times can be long, but even after 10 minutes the screen is black and there is little activity from the led’s on the board.