We are a large Community College with a diversity of clients. We have
lots of XP and Win7 using the NCP client, and also a large number Macs
(10.x and above) using AFP to access files served up by a NW 6.5 SP8 server.

Recently, to resolve a Win7 issue, we turned of Level 2 OpsLocks. Then,
our Mac users stop seeing file lock messages; two Mac users can open the
same file with no locking messages (both using AFP).

How do we bring these file locked messages back?