Message : "ls: .: Stale NFS file handle"

[blackwhite]

when I run the following instructions:
address@hidden work]# cp -a lcdshow linux/
address@hidden work]# cd linux/lcdshow
address@hidden lcdshow]# ls
ls: .: Stale NFS file handle
address@hidden lcdshow]# pwd
/mnt/disk-e/work/linux/lcdshow

The enviroment of my computer is redhat9.0, kernel-2.4.20-9
in file /etc/fstab:
/dev/hda6        /mnt/disk-e        vfat    owner        0 0
/mnt/disk-e is FAT32 filesystem created by WindowsXP

in addition, when I use Nautilus 2.2.1 to copy /mnt/disk-e/work/lcdshow 
to /mnt/disk-e/work/linux/lcdshow and now it's ok.
address@hidden lcdshow]# ls
LcdCtrl.cpp  lcdshow.aps  lcdshow.cpp  lcdshow.dsw  lcdshow.ncb  
lcdshow.plg  Makefile   ReadMe.txt  StdAfx.cpp
LcdCtrl.h    lcdshow.clw  lcdshow.dsp  lcdshow.h    lcdshow.opt  
lcdshow.rc   Makefile~  Resource.h  StdAfx.h
address@hidden lcdshow]# pwd
/mnt/disk-e/work/linux/lcdshow

address@hidden lcdshow]# man cp
...
AUTHOR
      Written by Torbjorn Granlund, David MacKenzie, and Jim Meyering.

REPORTING BUGS
      Report bugs to <address@hidden>.

COPYRIGHT
      Copyright (C) 2002 Free Software Foundation, Inc.
      This is free software; see the source for copying conditions.  
There is
      NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  
PARTICULAR
      PURPOSE.

SEE ALSO
      The  full  documentation  for cp is maintained as a Texinfo 
manual.  If
      the info and cp programs are properly installed at your site, 
the  com-
      mand

             info cp
      should give you access to the complete manual.

cp (coreutils) 4.5.3             February 2003                           
CP(1)