Hmm. Well here's my setup: US DSi Acekard 2i with AKAIO PROPER 1.4.1 repack. Patriot 8GB MicroSD HC formatted with Panasonic formatter. I've tried to play both: Black Sigil and Dragon Quest IV. Problem: After some time (I was a good 5-8 hours into Black Sigil and 5 hours into DQIV), I shut my DSi off one night, and turn it on the next day to find that my save file has disappeared! Actually I'm not sure if they got deleted + recreated, or simply wiped - but either way when I start the game, my save file seems to have been deleted. =( Now I've had this happen to me on two games, and it's really turning me off from playing my DSi at all, since I just lost a good 10-15 hours of gameplay. =/ Anyone have an idea of why this is happening and/or how to fix it? Thanks in advance! I'm hoping someone can help me out, or I'll have to purchase another card because I really don't want this to happen again - especially not when I'm playing RPG's.