Your uids/gids seem out of sync between client and server, i.e. you need to synchronize your client's and server's uid/gid system (c.f. nsswitch.conf).
how is this done..?
I.e. you typically will have to synchonize /etc/passwd and /etc/groups and might want to add a network wide passwd/groups system, such as nis/yp.
sorry, what is nis/yp..?
Ralf
cheers. Mark Sargent.