MacOS X: inc can't lock

So, I got nmh to install just fine after changing INSTALL to 
README.install (as noted, one can use .PHONY in the makefile). To any 
Macheads out there, I'm happy to report that you can specify "bbedit" as 
your editor in ~/.mh_profile and work with messages in BBEdit as long 
as save the draft files before answering Whatnow.

But, alas, I'm getting the dreaded "inc: unable to lock..." error.


Known:

1. Mail is being delivered to /var/mail/jon just fine, via Postfix.

2. ls -l /var/mail/jon reveals:

-rw-------  1 jon  mail  1095 Jun 24 17:31 /var/mail/jon

3. I ran "chgrp -R mail /usr/local/nmh" in case it was a group permissions 
problem; previously, nmh was in group wheel. This had no discernible 
effect.

4. Per the faq's suggestion, I added:

        lockldir:
        lockstyle: 1

to the mts.conf file. This had no discernible effect.

5. I have no clue how locking should be done in MacOS X.

Any thoughts?

TIA,


Jon
-- 
Jon Stewart
stew1(_at_)ellipsis(_dot_)cx

"and dropping a barbell, he points to the sky, saying 'the sun's not 
yellow, it's chicken.'"

                        -- Bob Dylan