normal user can't access mounted fat32 partition?

When I try to access dirs in mounted fat32 partition,error show as following captured:

什么文件

It seems all dirs are identified as unknown files(not as dir),and can't be accessed!

post your /etc/fstab

/dev/hda9 swap swap defaults 0 0
/dev/hdb5 swap swap defaults 0 0
/dev/hdb7 / ext2 defaults 1 1
/dev/hda1 /dos vfat defaults 1 0
/dev/hda5 /win vfat defaults 1 0
/dev/hda6 /mediums vfat defaults 1 0
/dev/hda8 /fedora ext3 defaults 1 1
/dev/hdb6 /suse ext3 defaults 1 1
/dev/hdb12 /soft vfat defaults 0 0
/dev/hdb13 /media vfat defaults 0 0
/dev/cdrom /mnt/cdrom iso9660 noauto,owner,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
proc /proc proc defaults 0 0

/dev/hda5 /win vfat defaults 1 0

try to change to

/dev/hda5 /win vfat auto,umask=000 1 0

非常感谢：)