I found this on my local IS newsgroup page:
Error:
"There has been a network or file permission error. The network connection may be lost." when saving Microsoft Office documents to a NetWare 5 file server
Situation:
When trying to save a Microsoft Office 2000, Office 97 Excel or Word file to a NetWare 5 file server you get the error:
"There has been a network or file permission error. The network connection may be lost."
You can save the file under a different name.
Solution:
To correct this problem, disable scanning on network drives in the Client RealTime Protection options in the Symantec System Center.
From the Symantec System Center:
1. Unlock the server group
2. Right-click the parent server and go to All Tasks, Norton AntiVirus, Client Realtime Protection Options.
3. Uncheck the box next to "Network" under Drive Types.
4. Click "Reset All" to apply this change on all clients.
Then the replay to this post was:
This problem occurs when userswere trying to save existing casenotes they had just edited, back to the shared drive on the netware 5.0 server. If the user simply changed the name of the file by adding a 1 to the end of the file name, the file saved to the shared drive OK. After that was done, both the original file and the new file worked fine. This novell procedure below did not fix the problem. The problem is caused by NAV on the server, not the workstation. To resolve this problem all at once, I logged into each server as myself, made a "casenotes2" folder, and then copied the entire contents of the casenotes folder to the casenotes2 folder. I then deleted the casenotes2 folder. After doing this, all the files in the original casenotes folder would save with no problem.
Perhaps this applies and will help you. Please post a comment with your solution(s).