Me and my friends have bought about 7 ds lites which we use for multiplayer wireless sessions. One of them doesn't recognise any of our flashcards (acekard 2i, supercard dsonei mini, R4, R4 king) no matter what we try. But it runs normal game cartridges fine and has no other problems. Does anyone know why this is? It was bought used from ebay. We even found out that 2 of our ds lites are actually fakes but they still run the flashcards. Is there any sign that a ds lite won't run flashcards so we don't end up buying another dud, or better yet does anyone know if it can be fixed?