Marauder's Map problem

[Florence]

No: HPFGUIDX 17000

--- In HPforGrownups at y..., Magda Grantwich <mgrantwich at y...> wrote:

> 
> In PoA, Snape went charging out the castle door to the Whomping
> Willow because he saw the Map on Lupin's desk.  If he couldn't see
> Sirius or Lupin, why did he go after H, H & R?
> 
Yes - It must have been Lupin he saw here as the others would already 
have been in the shack at this time.  Also, while we're picking holes 
in these otherwise excellent theories, I think the users of the 
marauder's map (who I think are the intended marauders) Could easily 
need to see stationary people.  What if someone you don't want to meet 
is just waiting around the next corner or outside the one eyed witches 
hump?

Personally I think there are some issues around the marauders map 
which I tend to think are mistakes, although I can just about buy into 
the 'it doesn't show people not in the same timeframe' idea as 
changing time is against some fundamental magical rule (if I remember 
Hermione right).

Florence