capi:print-rich-text-pane trouble
In LWW6, XPSP2, When I try to print a rich text pane, I get the error:
The slot CAPI::PENDING-UPDATE-OPS is missing from
#<TEST-RT-INTERFACE "Print test" 26F5DD87> (of class
#<CAPI::CAPI-CLASS TEST-RT-INTERFACE 268B26F3>), when reading
the value.
I select "Print" from the file menu and click the print button in this 
pane using this print function.
(capi:define-interface test-rt-interface ()
    ()
    (:panes
     (display-window
      capi:rich-text-pane
      :accessor display-window
      :text "Test text"))
    (:menus
     (file-menu
      "File"
       (("Print"
        :callback-type :interface
        :callback 'print-pane))))
     (:layouts
      (main-layout
       capi:column-layout
       '(display-window)))
     (:menu-bar file-menu)
     (:default-initargs
      :layout 'main-layout
      :title "Print test"
      :best-height 100
      :best-width 100))
(defun print-pane (pane)
    (capi:print-rich-text-pane pane))
 > (capi:display (make-instance 'test-rt-interface))
Mitch Berkson