Some floppy cables aren't one way, meaning they can be plugged in upside down. Check your cable and make sure it's inserted properly. Also, make sure your floppy controller is enabled in the bios and appears correctly in the device manager.
Thank you for your reply,
I have checked the cable with no 1 red edge on the same side with the floppy and hard drives. The other end is one way to the board with the notch in the middle of the plastic plugin cap. Bios does see floppy drive A and the device manager shows no problem with the floppy My windows xp is 32 bit. Would it be relevant if windows 64 is installed?