I've noticed that if OPLocks is enabled (which is the default in
iManager) for a CIFS server, then performance grinds to a halt :

On Win2K systems when browing a folder and "Enable Web Content in
Folders" is enabled (provides a first page graphic on the left side of
the directory folder), 10 - 15 second hang when clicking on any item in
the list
Loading a file can hang the application (in this case Word).

Initially I disabled the "Enable Web Content in Folders" and this helped
a lot but in the end I had to disable OP Locks.

Any idea why this might be.

Also, XP systems did not seem to exhibit the same symptons.