Does anyone have NFSv4 working in Fedora Core 6?

[Arthur Pemberton]

Does anyone actually have NFS4 working on an FC6 machine? I've been
trying for hours to mount using nfs4.

When i using `mount` I get:
mount: pinging: prog 100003 vers 4 prot tcp port 2049
mount.nfs4: Operation not permitted

When I use `mount.nfs4` I get:
mount.nfs4: Operation not permitted

In addition to that, if I use any of the parameters for mount.nfs4
documented in its usage text, i get the usage text printed out again.

Please advise. My next option is to use samba if this doesn't pan out.

-- 
Fedora Core 6 and proud