I'm running into a weird problem with my DSTWO. It runs most games fine, but Pokemon Black and White 2 won't work. The game will start up, play the intro movie, but when it hits the title screen, the screen just goes black, and the title screen music plays slow and distorted. No button inputs work, and I can't get past this. I've tried using a clean and AP patched rom, and reformatted the SD card to see if that would work (it didn't). Is there something special I have to do to run this particular game?