BM3.9SP1, NW6.5SP7

Filters just stopped working. No errors on the server, just suddenly,
access to everything for everybody.

Rebooted server, no joy. Made a couple of minor changes, ACLCHECK seemed
to reset correctly, still nothing forbidden. (Yes, the box to enforce
the rules is checked!).

DSREPAIR, STOPBRD, unload CPFILTER, STARTBRD still no joy

Add a rule (#1, right at the top of the list) Deny Any to my NDS ID,
apply changes, ACLCHECK resets, still no filters working.

Besides go buy an appliance, I'm not sure what the heck is going on
here. Everything seems fine, except for the fact that "it doesn't work."

Any help greatly appreciated!

Tia,
Ken