i have a sky3ds blue button model cart, for some reason i get lockups (sound goes away and once i change scenes the screen stays black forcing me to reset)on my lexar class 10 16gb sdhc micro sd card. i have another lexar thats a class 4 4gb sdhc micro sd card that hasnt given me any trouble yet, (on the games it freezes on it has let me play past those parts) would anyone happen to know why this happens? i bought a pny class 10 16gb micro sd card from amazon coming soon im hoping that works. if it helps one of the cards 16gb* says made in korea and the 4gb says made in taiwan