Hello, to all, I have a user in the UK that can't open her mailbox via a Citrix client nor through OWA. I am using Exchange 5.5, SP4 on 2000 server. Can any one point me to a possible reason. It is just one user, If I add his profile to my outlook it works fine. thanks, Juan Ibarra Windows Systems Administrator Phone: (650) 930-5474 Fax: (650) 930-5606 jibarra@xxxxxxxxxxx www.marimba.com <<...OLE_Obj...>> The Software Change-Management Company