This is the second time my MicroSD card lost it's FAT partition and stops being recognized by windows. First time was when I was in the middle of using FATSORT. The other time it happened was when I pulled out my card reader then later put it back in only to find it saying "please put a disk into drive X." I suspect either my MicroSD card is defective or the R4DS USB card reader is defective. Anyone else have problems like this or have any input of why this is happening? A couple of infobits that may be useful. I am running on a Kingston 2GB microcard. Also, I notice that when I use the R4DS USB card reader in my PC it begins to get very warm to the touch. I am wondering if this implies a problem within the card reader that could cause this. I also have a habit of pulling out my card reader without properly using the "safely remove hardware" button in XP. I somewhat ruled this out as the problem because I've been pulling out flash memory hundreds of times over the years without a problem.