So, I've just recently got lemmings on psp. (After only a while I was SO far in the game, so I'd really love to be able to fix this). Every now and then, when saving, a message flashed up saying "Memory Stick Changed. Please Select new save slot." I hadn't changed the memory stick, but I chose a new slot anyway. After this happened several times, I went on to it one day and, when trying to load, my profile didn't show up and all our others were still there to load. When I went to the XMB and went to"saved data utility" my profile was there, but still wouldnt load when I went onto the game.