Mount Problem when WinXp is hibernating

Hello,

I've got Debian Lenny since last year and during the "getting used to Linux"process I kept the old WinXP partition (well, it stills there). So, now I've got my disk with two OS (Windows XP Professional, Linux Debian Lenny).

When I did it, I included a line in fstab file with the following, in order to always mount the WinXP partition.

# /etc/fstab: static file system information
# <file system> <mount point> <type> <options>                                       <dump> <pass>
...
/dev/hda1             /media/windows/C     ntfs-3g    rw,locale=en_GB.utf8,uid=1000     0              0
...

It works fine, but, today I came across with something. I left WinXP hibernating and checking in console WinXP partition is not mounted.

I tried to mount it manually
#mount /media/windows/C
but here is the result
Failed to mount '/dev/hda1': Operation not permitted
The NTFS partition is hibernated. Please resume and shutdown Windows
properly, so mounting could be done safely.
Why could not this be done safely?

Here some details,
Kernel   2.6.22-3-686
KDE      3.5
Laptop Acer TravelMate 2300 Series

Regards,

--
Oscar Blanco García
Ingeniero Electrónico - Universidad Nacional de Colombia
Teléfono: Casa: +57 1 687 0019
Celular: +57 3133890451
Carrera 123B # 131-66 Bloque 55 Apartamento 402
Bogotá, Colombia