Hi Carsten, Carsten Dominik writes: > Hi Matt, how about a backtrace, and maybe you can try > to figure out which line in your diary file causes the problem? > > - Carsten Absolutely. I've put the results below, along with a sample diary file I ran the test on and my configuration. I'm copying a backtrace for the first time, so feel free to tell me if I've failed to include something. First, before I include the results, I believe I've identified the culprit: it's the syntax for generic monthly events in the diary, e.g., */3 Monthly meeting When I remove this line from the sample diary file, agenda column view works fine. (By the way, this was the impetus I needed to switch all my appointments to org-mode, since it's so nice to be able to add notes to events in org-mode files.) Best, Matt ---begin Backtrace--- Debugger entered--Lisp error: (wrong-type-argument stringp nil) looking-at(nil) org-entry-properties(#) byte-code("ÆÇ!ˆÈ ˆ`ɓˆÉ‰‰‰‰‰‰12ÊË!ƒ> ƒ> 2Ë234Ì4!3Lˆ*‚—ÍÎ Ï\"‰ƒ^Ð\fÑÒ#†YrÓ\f!qˆ5)2‚—ÊÔ!ƒvÕÔ!ƒvƒv2‚—ÖeÏ\"‰ƒ—Í\fÏ\"Ð\fÑÒ#†•rÓ\f!qˆ5)22†ž52Ô234Ì4!3Lˆ*×2!ˆ6ƒ¿Ø7!ˆŠebˆm„=Í`Ï\"†ÒÍ`Ù\"‰ƒ6Ú\f!Û8 \"‰ƒñÜÝ\nA†íÞ\"„9ƒÍ`ß\"‰ƒà !áâ Gãä %ˆ8 B BÉ:Š:ƒ :bˆnƒ(å‚)âæå`\"\\* B1B1çè!ˆ‚Ã1…†é21\"ê 34Ì4!3Lˆ*ë ˆìÊí!…d-34Ì4!3L*ƒwíâ!ˆîï1\"ˆ;…†ð1!.‡" [org-columns-begin-marker d a p m maxwidths org-verify-version columns org-columns-remove-overlays nil boundp org-agenda-overriding-columns-format make-variable-buffer-local get-text-property point-at-bol org-hd-marker org-entry-get "COLUMNS" t marker-buffer org-columns-current-fmt local-variable-p next-single-property-change org-columns-compile-format org-agenda-colview-compute org-marker org-entry-properties assoc string-match "\\S-" "" duration org-minutes-to-hh:mm-string put-text-property 0 face org-warning 1 count-lines beginning-of-line 2 org-columns-get-autowidth-alist org-columns-current-maxwidths org-columns-display-here-title org-columns-flyspell-was-active flyspell-mode mapc #[(x) "Á@!ˆÂA!‡" [x goto-line org-columns-display-here] 2] org-agenda-colview-summarize cache ...] 7) * org-agenda-columns() call-interactively(org-agenda-columns) ---end Backtrace--- ---begin diary file--- */6 Monthly meeting Thursday Weekly discussion %%(and (= 1 (calendar-day-of-week date)) (diary-block 1 12 2009 2 28 2009)) 3:30pm-5:00pm Weekly meeting %%(diary-anniversary 3 5 1975) James turns %d %%(diary-block 1 19 2009 1 22 2009) Chicago trip Jan 7, 2009 2:00pm meeting ---end diary file---- ---begin diary configuration--- (setq diary-file "~/diary") (setq cal-tex-diary t) (setq cal-tex-holidays nil) (setq view-diary-entries-initially t) (setq mark-diary-entries-in-calendar t) (setq number-of-diary-entries 1) (add-hook 'diary-display-hook 'fancy-diary-display) (add-hook 'list-diary-entries-hook 'sort-diary-entries t) (add-hook 'today-visible-calendar-hook 'calendar-mark-today) ---end diary configuration---