After I enable "column view of properties" in the attached file, export
to PDF via LaTeX fails with the following error in the minibuffer:

org-export-as-latex: Text is read-only: "Type `e' to edit property"

Emacs  : GNU Emacs 23.1.50.1 (i486-pc-linux-gnu, GTK+ Version 2.18.0)
 of 2009-09-27 on palmer, modified by Debian
Package: Org-mode version 6.33trans

current state:
==============
(setq
 org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars)
 org-agenda-files '("/src/greenrd/org")
 org-blocker-hook '(org-block-todo-from-checkboxes org-block-todo-from-children-or-siblings-or-parent)
 org-checklist-export-function 'org-export-as-ascii
 org-after-todo-state-change-hook '(org-clock-out-if-current org-checklist)
 org-agenda-todo-ignore-scheduled t
 org-startup-folded nil
 org-agenda-sorting-strategy '((agenda time-up priority-down effort-up category-keep)
			       (todo priority-down effort-up category-keep)
			       (tags priority-down effort-up category-keep) (search category-keep))
 org-agenda-prefix-format '((agenda . "  %-12:c%-12:T%?-12t% s") (timeline . "  % s") (todo . "  %-12:c")
			    (tags . "  %-12:c") (search . "  %-12:c"))
 org-deadline-warning-days 900
 org-export-latex-format-toc-function 'org-export-latex-format-toc-default
 org-agenda-skip-scheduled-if-done t
 org-export-preprocess-hook '(org-export-blocks-preprocess)
 org-tab-first-hook '(org-hide-block-toggle-maybe)
 org-src-mode-hook '(org-src-mode-configure-edit-buffer)
 org-confirm-shell-link-function 'yes-or-no-p
 org-export-first-hook '(org-beamer-initialize-open-trackers)
 org-todo-keywords '((sequence "TODO(t)" "QUESTION(q)" "PLANNING(p)" "PENDING(e)" "STARTED(s)" "FINISHING(f)" "|"
		      "DONE(d)" "OBSOLETE(o)")
		     )
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-default-notes-file "/src/greenrd/org/remember.org"
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers org-cycle-show-empty-lines
		  org-optimize-window-after-visibility-change)
 org-mode-hook '(#[nil "\300\301\302\303\304$\207"
		   [org-add-hook change-major-mode-hook org-show-block-all append local] 5]
		 )
 org-global-properties '(("Effort_ALL" . "0 0:10 0:30 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00"))
 org-return-follows-link t
 org-confirm-elisp-link-function 'yes-or-no-p
 org-beamer-environments-extra '(("figure" "F" "\\begin{figure}" "\\end{figure}"))
 org-agenda-todo-ignore-with-date t
 org-enforce-todo-dependencies t
 org-occur-hook '(org-first-headline-recenter)
 org-priority-start-cycle-with-default nil
 org-export-preprocess-before-selecting-backend-code-hook '(org-beamer-select-beamer-code)
 org-agenda-todo-ignore-deadlines t
 org-modules '(org-bbdb org-bibtex org-gnus org-info org-jsinfo org-irc org-mew org-mhe org-rmail org-vm org-wl
	       org-w3m org-checklist org-interactive-query org-man org-registry)
 org-remember-templates '(("Web link" 119 "* %u %c \n\n%:region\n" nil "Web links" nil))
 org-export-latex-final-hook '(org-beamer-amend-header org-beamer-fix-toc org-beamer-auto-fragile-frames
			       org-beamer-place-default-actions-for-lists)
 org-enforce-todo-checkbox-dependencies t
 org-lowest-priority 70
 )