Try this
Power down
Physically unplug all USB Devices
Reboot to Safe Mode
Open Device Manager
Remove ALL USB Devices and Controllers
Remove ALL error-flagged devices
Reboot to Normal Mode
Plug in USB devices one at a time, and get each recognised before proceeding
to the next

See if that cures it
--
Noel Paton (MS-MVP 2002-2004, Win9x)

Nil Carborundum Illegitemi
http://www.btinternet.com/~winnoel/millsrpch.htm

Please read http://dts-l.org/goodpost.htm on how to post messages to NG's
or
http://www.microsoft.com/presspass/f.../Mar27pmvp.asp
"Bernard Johnson" wrote in message
...
Hope somebody can help. I have two removable USB mass storage devices
installed, one is my Fuji digital camera and one is an Oracom MP3 player.
They have both worked perfectly well until recently. Unfortunately I
cannot
identify exactly when they stopped working correctly. When I connect
either
of these items, via USB, they are not assigned a letter. If I look in My
Computer they do not exist. They do exist under Device Manager. If, under
Device Manager, I manually assign a letter when the computer restarts to
accept the changes, the manually assigned letters are active and the
devices
are visible under My Computer. Unfortunately, it only appears temporary as
when I reboot my computer and re-connect the USB devices they, again, are
not assigned a letter. I have tried uninstalling and reinstalling the
software, including drivers, associated with both the camera and the MP3
player, with no effect.