Administrator's link to other users' documents

When I open My Computer while logged on as Administrator I see folder icons
for the My Documents folders of all the other users on the computer - except
one! All the users' My Documents folders are located on a separate logical
partition, so I've gone through the process of moving the folder location for
each user. (This was so I could see the same My Documents whether using Win
XP 32 bit or 64 bit, as both are installed.) What might have got lost in the
My Documents setup for the one user which doesn't show up in My Computer? How
could I restore this?

Grateful for advice.