I've just tried to load Castlevania on two seperate EZ4-Lites both using two different Micro-SD cards (1GB Kingston and Sandisk) only to find that the game wouldn't work properly on either. I was attempting to speed test the cards but it became apparant that wasn't going to happen when I loaded the game and there was heavy artifacting in the menu or very shortly after I started the intro movie. Once even the Konami splash screen showed with a yellow background and black text! I downgraded the client to the previous version and reloaded the games and all is now working. Although that video is damn craklely! I'm using the latest firmware (EZ4loader060906) on both cards.