Can't write VFAT filesystem

[Amin <amin@siriusbb.com>]

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Hi,

I've set up my /etc/fstab file as usual, so that I can 
access my Windows C: and D: drives, as shown in the attachment.

I can mount/unmount both these drives and read them.  I can 
also write to the /mnt/c filesystem.  But for some reason I 
can't write to the /mnt/d filesystem.  Specifically:

$ whoami
yawar
$ pwd
/mnt/d/My Documents
$ touch file
touch: creating `file': Permission denied
$


Can some kind soul tell me what I'm doing wrong?

Thanks,
Yawar Amin

[-- Attachment #2: fstab --]
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LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot             /boot                   ext3    defaults        1 2
none                    /dev/pts                devpts  gid=5,mode=620  0 0
none                    /proc                   proc    defaults        0 0
none                    /dev/shm                tmpfs   defaults        0 0
/dev/hda4               swap                    swap    defaults        0 0
/dev/cdrom              /mnt/cdrom              iso9660 noauto,owner,user,unhide,kudzu,ro 0 0
/dev/fd0                /mnt/floppy             auto    noauto,owner,kudzu 0 0
/dev/hda1		/mnt/c			vfat	noauto,owner,user 0 0
/dev/hda5		/mnt/d			vfat	noauto,owner,user 0 0