NNDiary doesn't remind me when I hit 'g' in the Groups buffer

[glenn . ammons]

NNDiary doesn't remind me of upcoming (or missed) appointments when I
hit 'g' in the Groups buffer.  M-g
(`gnus-group-get-new-news-this-group') works as expected, but I rarely
remember to jump to my nndiary group and get new news just for it.  My
.gnus.el contains:

(require 'gnus-diary)
(require 'nnir)
(require 'icalendar)

(add-hook 'gnus-select-group-hook 'gnus-group-set-timestamp)

(setq gnus-secondary-select-methods
      `((nndiary ""
                 (nndiary-inhibit-expiry t))
        (nnml ""
              (nnir-search-engine swish++)
              (nnir-swish++-configuration-file
               ,(expand-file-name "~/Mail/swish++.conf"))
              (nnir-swish++-program "search++"))))

and my .xemacs/custom.el contains

(custom-set-variables
 ...
 '(nndiary-reminders (quote ((1 . minute) (10 . minute) (0 . day))))
 ...)

Any help would be appreciated.

Thanks.
--glenn