Can you see that the LED lights for a time? If you insert a disk and click on the drive in My Computer, does the LED light? If so, it may be dead or could be just choked with dust.
My floppy disk drive is not being read/recognized AT ALL! Does this mean it's "dead" and time to replace it? I put a disk in and NOTHING happens, well, except that the computer tells me to insert a floppy disk.