I have recently purchased an R4 for my Nintendo DS however i am having a problem. When i turn on my DS there is a screen that says Loading... and then nothing happens. I have followed the instructions properly from the instuction manual and from a few other sources. I put the _system_, moonshl, _DS_MENU.DAT, and _DS_MSHL.NDS files/folders onto my microSD along with a .nds game. I have tried reformatting my microSD many times and still nothing. Is this a common problem? Are there any solutions to this problem?