[O] problems invoking org-agenda

[Peter Salazar]

Maybe this is too esoteric for anyone to know, but I'm struggling and I can't figure this out. 

The time is Aquamacs 2.4. The place is org-mode 7.8.03. When I try to invoke org-agenda (C-c a a --- i.e.  "Agenda for current week or day"), I get the error message: 

Args out of range: #(" work :        " 0 14 org-category "work" tags nil org-highest-priority 65 or-lowest priority 67 time-of-day nil ...)), 0, 20

As far as I know I don't have any categories or priorities. 

Has anyone seen this before?