Okay, so I've searched around, but everyone seems to have different answers on this subject, so I've decided to post this topic for a more up-to-date answer on it (Sorry.) In the last few days, my R4DS has been occasionally freezing up at random points during games; it doesn't appear to be one specific game, either - it spans more or less every game from various companies. Every so often, it even fails to recognize the R4, instead taking me to the regular DS menu, until I turn it off and reinsert the R4 cart and/or the MicroSD card. I'm using an authentic R4 (I'm 99.9% sure it's real), firmware 1.18, and a DS Lite. I have tried reformatting; in fact, it's only started happening SINCE I reformatted (last time I reformatted it was thanks to SD card corruption) I don't know what to do or what's causing the problem, whether it's the contacts or the DS itself or whatever. If you can help, thanks in advance.