I downloaded pisnes at my grandpas house because we do not have good internet at ours. It worked fine and I love it, but now, after I brought it home (and is no longer connected to the internet), It wont load games! I load the gui, but when I select a rom, it just brings up a black screen and won't seem to load the game. It worked at my grandpas house, but now not a single rom will load! Please help, thanks!
p.s. I connect my pi with an HDMI cable.