OP, if you still have your K1, would you mind testing a game and telling the performance results (Golden Sun should be fine)? I'm somewhat surprised that nobody has mentioned this idea (been bothered by it since post #6...thus why I posted a little after that)...but maybe your microSD is just shit ._. ....I don't think I have seen any indication that you have actually tried a different microSD, different class, w/e...I'm somewhat just going to assume you don't have retail copies of both the (E) and (U) versions.