I just got a DSi with the version 1.2E firmware, and I have a R4i Gold (1.4 compatible) cart that's working. Unless you guys can fill me in on something, the only reason I can see to upgrade is so that I can download from the online shop, which I wouldn't mind doing, but I'd hate to cause myself problems. Don't fix what's not broken, you know. So, should I upgrade or should I just leave well enough alone? Thanks!