I have a variety of DELL work stations that hang when the user logs in.. IE

Your current context is .......
Your Current tree is: ........
You are attached to server: FSxxxxx

And then it hangs. I have WINXP Pro on all workstations SP2 plus all current SP2 updates. I cannot apply SP 3 as some of our major software does not yet support SP3. I am using Novell Client 4.91 SP4.

If I have the user login to "worksation only" then right click on th Big red N and login, it works.. It will then continue to work ok if user just logs of and on... IF user reboots the machine, then it all starts over again.

Does anyone have any Ideas??