downloaded 3 games -

i normally dont have a problem with getting the games onto the ds but i downloaded 3 this morning, one works as normal but
China Town Wars and Club Penguin both come up with a black screen with white writing saying that the save data cannot be loaded, anybody help with this, thanks in advance.

what are you trying to play them on? Both these games are known to be difficult with some flashcards.

On an R4 card

original R4 or clone? what firmware version?