I was having some weird behavior on mine. I started it up, played some Adventure II, saved it. Turned the AFP off and then back on was able to get the save to load. Turned it off and set it down. Decided a few minutes later to try loading the save again. Turned it on, selected Adventure II and the screen went blank. Turned it off and on, tried again, same thing. Turned it off and on again tried a different game, blank screen. It wasn't turning off because the power light was still on. Decided to try charging it, even though the low power light wasn't coming on. After it finished charging it worked like normal.