Windows XP Hibernation Error cos of Keyboard Device Drivers

> I don't know if anyone can help - BUT:
>
> We recently bought Win XP Pro and installed fresh on
> existing PC. We have had MS Natural Keyboard which has
> never caused any previous problems with other OS's.
>
> When we try to hibernate the computer it comes up with an
> error saying that the device driver for the keyboard is
> stopping the computer from going into hibernation and
> that we should upgrade our driver.
>
> We thought it might be becuase the keyboard was old and
> that no up-to-date drivers were available. So... we
> bought the NEW MS Natural Media Keyboard with updated
> drivers, etc...
>
> WE STILL have the same problem. I know it doesn't sound
> too major problem but we have battery backup systems that
> try to hibernate the system in case of (whatever!) and
> because of this error this does not function. HELP!!!!!
>
> Many Thanks,
>
> Ben