TimSieved dies silently, exit status 75 .. in config.c?

[Joe Rhett]

I'm using CVS'd cyrus_2_2.  For some reason that I can't figure out,
timsieved dies with:

telnet localhost sieve
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
NO Fatal error: Internal error: assertion failed: config.c: 220: imapopts[opt].t == OPT_SWITCH
Connection closed by foreign host.

Oct  2 15:45:57 gamera.isite.net master[24520]: [ID 392559 local6.debug] about to exec /opt/imapd/bin/timsieved
Oct  2 15:45:57 gamera.isite.net sieve[24520]: [ID 518349 local6.debug] executed
Oct  2 15:45:57 gamera.isite.net sieve[24520]: [ID 921384 local6.debug] accepted connection
Oct  2 15:45:57 gamera.isite.net master[24353]: [ID 310780 local6.debug] process 24520 exited, status 75

The last time I set up Sieve it worked perfectly out of the box, so I never
learned anything :-(  This is probably a bonehead configuration problem,
but I don't know where to look.

Is there any additional logging I can get here to figure out what's wrong?

-- 
Joe Rhett                                                      Chief Geek
JRhett at ISite.Net                                      ISite Services, Inc.