After firing up my DS today I hopped onto Ninjatown only to found the two hours i spent in the day yesterday were completely wasted as my save just was not being recognised. The file exists...but the game isn't picking it up. However yesterday I came off it, then returned to play again and the save was fine. What did I do to loose it today? Not only that but I sat in bed playing Dementium with my headphones in last night, only to find the save game for that also is not being recognised at all. It definitely exists, its just when I fire up the game its as if it doesnt exist as theres the option to start a new game etc and my saves are gone.