[Orgmode] Property does not seem to work

[Ryan]

Hi,

When I do a "C-c / p", as per the manual, I get a "Wrong type argument: integer-or-marker-p, nil" message.

I'm using EmacsW32 latest version and Org 6.16 on XP.  I also tried Emacs 22.3 (plain vanilla), and I get that message there too with Org 6.17c.

Any thoughts?

Thanks,

Ryan