My new Acekard 2.1 seems to have some issues. I have a Ds Lite, I'm kinda new to this and wanted to consolidate all the games I own. I'm pretty sure I set it up correctly. I tried the official firmware ver. 4.21 and the Akaio 1.5.1. It loads up fine with either, and backup games are all present. However any time I attempt to write a save file it usually freezes up. On my pc it shows a .sav file is created. Rarely it will actually finish saving but when I try to access them at a latter time they come up as "corrupted files" that must be deleted. Frustrating! I've tried older firmware versions,and formatting my 1gb sandisk sd card. I also tried formatting my 8gb sandisk micro sdhc card from my phone same issue. On both cards I was sure to leave plenty of space for save files. Before posting this I searched as much as possible and I apologize if there is something simple I have overlooked or that has already been addressed. I purchased the Acekard from deal extreme and It doesn't appear to be a fake. I also purchased a 4gb kingston micro sdhc card which hasn't arrived yet that I was planning to try and see if maybe it was an issue with sandisk brand. Does anyone know of something else I can try or if I should try to make an exchange for another kard. Any suggestions would be greatly appreciated.