When I turned my DS on yesterday with the M3 plugged in the DS didn't boot normally, it never got past the M3 "Loading..." screen. I tried turning off and turning on again but it didn’t help. I noticed that the Micro SD card was hot to touch. I removed the card and plugged it into a PC with the USB adapter included with the M3 kit and it wouldn't recognise as drive in the PC. The card is a 1GB Sandisk MicroSD bought from a highstreet store recently and has been used only with the M3 and USB adapter. The night before this event I copied a game and some music to the card with the USB adapter and it worked perfectly. I am sure the card was seated correctly in the M3. I believe my M3 Simply DS is faulty and damaged my Micro SD card. Has anybody heard of the M3/R4 damaging Micro SD cards in this manner? Cheers!