Don't know if slivester is still around or solved his prob but I had the same recently. After much headscratching and trying numerous 'variations on a theme' it became obvious that this could not be remedied from within Windows through Admin tools or Partition magic, nor could Fdisk help in DOS. The solution is to run a start up disc that gives CD support and at DOS prompt access CD Drive with PM on it then run the Dos variant of PM. This picks up the NTFS partition and allows you to change format to FAT32, at which stage you can re-boot to Win and use the normal progs to do whatever you wish. Hope this helps anyone else who has this glitch.