Alright, I have my R4DS which I used for a couple of days. The only things I did so far was download one game, a couple of SAVS, and recently discovered how to use the Cheat Editor and stuff. Earlier this day, I plugged my USB with the Memory Card in there and 'Removable Disk' appears on 'My Computer' and it was like usual. I double clicked to open it and says 'Please Insert Disk' I was like WTF, I hope it didn't break.. So I tested it on my DS and it still works, my games are still there and playable. But it doesn't pop up on the computer. Please Help!