I have about 100 workstations. We have two servers in one tree, a Novell 6.5 and a Novell 5.1. Usually the first login in the morning is successful, but if there is a workstation needs to restart it often can not login to Novell 5.1 and sometimes neither the Novell 6.5. When I click on the advanced buttom I can not sea the tree. Sometimes when I try to log in after 5 minutes it is succesful, but not al the time. This problem occurs randomly among the workstations. last time I installed the Novell Client 4.91 SP4, but there is still problem.