Floppy trouble

My stupid floppy isn't letting me write to it. I use kernel 2.6.7. When mounted as subfs, it says it is a 'read-only filesystem'. When I mount it as vfat I get : Fuzzy:/home/steven # mount -t vfat /dev/fd0 /media/floppy mount: block device /dev/fd0 is write-protected, mounting read-only Fuzzy:/home/steven # and the same with msdos and ext2. I can't format it either. What is wrong?