shared custom icons

[John Kupec]

Been playing around with customizing login icons.  Ran into a
glitch- is there a  way around this:

3 NFS'ed irises- no NIS or automount. User icons in B:/usr/local/lib/faces.
Irises A & C use icons from B via soft link to faces directory on B 
(B:/usr mounted on A & C).

This setup works fine UNLESS machine B is down.  Then, trying to login
on console sends pandora(?) into an infinite loop on A & C when trying 
to access the unavailable custom icons.  It seems logical enough to only 
want one set of icons- how to accomplish?

john