Floppy drive won't read disk

So, I have a floppy drive. In Linux and MSDOS, it can read
my floppy (3.5) disks fine. The disks also can be read on
other windows OS. My computer has an A: and its listed as
the floppy appropriately. It says the device is working
fine. However, if I put anything in there, it says that
the disk needs to be reformatted and can't read it. It's
not a hardware problem sicne it works on the otehr OSes on
the SAME machine and its not the disk for that reason and
the fact that it works on my machine and others -- what's up?