I've had my RPG for about four months or so, and it's never given me any problems. Sometimes, when I try to manage files on my SD card, my computer won't let me, for some reason. So instead of hassling with it, I would just cut and paste files from the RPG to the SD card manually, in the DS. A few minutes ago I was in this process, and did this with about 6 or 7 games. At one point, with still 4 or 5 games left on the memory, it showed that there were none. The SD card directory didn't seem to have any problem but it showed that the memory was empty. I shut off the DS and turned it back on, but the DS prompted that there was no DS card inserted. After removing it and placing it several times, I gave up, and turned to my PC. I connected the RPG to the PC and it said I had to reformat it. I probably should have waited on that after I got information from you guys here... but I reformatted it anyway. I tried putting in the firmware again but it still tells me that there's no DS card, and my other games work fine on it. I'm very worried that I may have taxed the RPG too much with all of that copy and pasting, and I really don't want to have to buy another one, so, please, for the love of God, tell me that there's a way to remedy this. Please. And thank you.