Sounds like the change signal isn't working. Could be the floppy drive.
Could be a damaged ribbon cable. Could be a bent header pin where the
ribbon cable plugs into on the back of the floppy drive on or the
motherboard.
The change line is wire 34 of the ribbon cable (see
http://www.bbdsoft.com/floppy.html). Since it is a 34-wire ribbon
cable, this signal is on the outside of the ribbon cable. Maybe it is
rubbing against something sharp that cut through the insulation and is
causing a short, or even cut through the wire. Could be someone has
been yanking on the ribbon cable instead of the plastic bodies for the
connectors and has yanked the wire away from the connection inside the
connector.
--
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"Wei Shih" <(E-Mail Removed)> wrote in message
news:03df01c3702a$1d0a2f90$(E-Mail Removed)...
> Since I changed the operating system on my computer from
> Windows 98 SE to Windows XP Professional. the floppy disk
> drive (drive A) has been malfunctioning in the following
> weird ways:
> The floppy drive always shows the file names of the
> floppy disk that I inserted first into the A drive, no
> matter which floppy disk is actually inside the drive.
> Even I know a given floppy disk is empty, it would still
> show all the file names of the first disk! As such, I
> have to turn off the computer before I work on another
> floppy disk. Is it because the original floppy drive is
> no longer compatible with the Windows XP Professional?
> If so, how can I obtain a driver update via internet?
> And, if not a compatibility problem, how can I resolve
> the problem? Any help or suggestions would be highly
> appreciated.
>
> Thank you.
>
> Wei Shih