5.2.1-R sysinstall NFS install failure

[Don]

Ok this is the last question I promise...

I am attempting to install FreeBSD via NFS. I keep getting an error from
sysinstall saying:
"Error mounting 10.3.1.20:/usr/FreeBSD/5.2.1-RELEASE on /dist: No such
file or directory"

I can mount 10.3.1.20:/usr/FreeBSD/5.2.1-RELEASE on other systems within
the network. The pxeboot loader is also pulling /kernel from an NFS mount
on this server.

Does anyone know why this might not be working?

-Don