I work at a school and we are having (long-running) problems with slow
logins on Windows XP SP2 with the Zenworks agent installed.
Login times vary from 5-15 minutes.
All servers are connected with gigabit links to the different classrooms.
The Novell client is version 4.91 SP5
The Zenworks server is NetWare 6.5 SP7 with ZFD 7 SP1 IR 3a HP1 running on a
HP proliant server, 933 MHz with 4 GB memory.
This server is also running Bordermanager 3.8 SP5 IR 1.

We are using DLU, a read only roaming profile of about 1.5 MB, group
policy's and a lot of apps.
The number of workstations is about 750, mostly modern machines of about 2
GHz to 2.8 GHz with 512 to 1024 MB memory.

I've tried disabling the profile, the policy's and using a user without
associated apps but nothing helps.

I'd like to hear your thoughts on it.
Thanks in advance,