quota problem with user-nfs

hi, i am trying to export a filesystem with quotas to nfs clients. server and clients are suse 8.2. if i use kernel nfs (nfs-utils) at the server, quotas are honored by the clients. but if i use user-nfs (nfs-server-2.2beta51-39) at the server, clients can write over all quota limits. do i anything wrong or is this a known bug? is there any workaround? best regards, martin. ps: please don't answer: why not using server-nfs -- Martin Walter University of Freiburg i.Br. --- Germany --- Fon/Fax: +49 761 203-4651/-4643 Rechenzentrum der Universitaet, Hermann-Herder-Str.10, D-79104 Freiburg i.Br.