Tetris DS used to run fine for me (the marathon music is patched) but now I just get a white screen when I try loading it. I deleted the saved game on the off-chance that might help and it didn't. Nothing about my DS(i XL) has changed since it stopped working... I guess I'll try adding it to the micro sd again... (I remove my acekard and the micro sd it encases as little as possible, lol, I know how cheap it is)