I'm the kind of guy who loves average play times etc, and wanted to see how long I'd been playing some games. However when I entered activity log, it gave me the "Error switch off your system blah blah blah". When I tried to switch it on, it stayed on a black screen. Turning it off and on again worked the second time, and everything worked grand, except for one thing; activity log. Activity log just has a spinning waiting thing, and I left it for three hours today on this screen, came back and it was still spinning. I don't know if it was GW mode which caused this. I was playing Dream Team Bros and this happened. I home, closed then went directly to activity log. What can I do? I don't want to format my 3DS as I have eShop games on it.