The World Ends With You - Random Freezes

Hey guys, I felt like playing The World Ends With You again, but now everythime I play, I get some weird Random Freezes.System Used:
Acekard2i | AKAIO 1.6RC2 | 4GB SanDiskInformation:
The freeze only occures in conversations, not in battles. When it occures, everything freezes, even the audio.
I tried reformatting my MicroSD card with Panasonic formatter, but it didn't help.So, does anyone know how to fix this?