Today users complained that files in a certain folders were not opening as
per normal but generating the message "The document path is not valid...".
It was valid. This occurs for all iser-available files that I looked at.

Looking at the Properties of files and their folders, in the Netware Rights
tab, no tree-list of users was visible and the 'Add' button was greyed out.
The 'Effective Rights ticks were RWECMF.

Looking at Console1's entries for the problematic(?) directory shows little
difference from other unproblematic ones.

The only 'change' recently has been the restarting of the server yesterday.
Might something have not started? I am at a loss to think what.

Any suggestions for a cure or at least a place to start looking?

In hope ChrisM