I'm Sorry, What useful information can I give you? I have a DSTWO supercard with a class 4 16GB microSD. I also have imenu, but it makes no difference if I launch it from imenu or from dsgame. When I launch the updated nesds, it works fine, but when I exit out and load it again, it white screens on me. All updates after whatever rev I have now have done this. I'm not exactly sure which one it is at the moment.