Thank you all for the effort.

After commenting line by line in the setup file & lots of reloads i found
that this line was the culprit:
(setq org-todo-keywords (quote ((sequence "TODO(t)" "STARTED(s)" "|"
"DONE(d!/!)")
 (sequence "WAITING(w@/!)" "LATER(L!)" "PROJECT(P@)" "OPEN(O@") "|"
"CANCELLED(c@/!)")))

the OPEN keyword has the quote in the wrong place.

A hard to spot, simple mistake.

But your level of effort made a big impression on me

Cheers & Thanks again,
Gabriel

2009/6/12 Nick Dokos <nicholas.dokos@hp.com>

> Carsten Dominik <carsten.dominik@gmail.com> wrote:
>
> > Any #+lines in your buffers?
> >
> > - Carsten
> >
> > > On Jun 10, 2009, at 9:12 PM, Tudor Gabriel wrote:
> > >
> > > I'm trying to learn org-mode.
> > > Each time I try to open agenda buffer, I get that error.
> > >
> > > If I can provide any additional info, please, don't hesitate to ask.
> > >
> > > Debugger entered--Lisp error: (wrong-type-argument listp "|")
> > >  org-set-regexps-and-options()
> > >  org-mode()
> > >  set-auto-mode-0(org-mode nil)
> > >  set-auto-mode()
> > >  normal-mode(t)
> > >  after-find-file(nil t)
> > >  find-file-noselect-1(#<buffer hobby.org> "~/org/hobby.org" nil nil
> > > "~/org/hobby.org" (174122 2053))
> > >  find-file-noselect("/home/tudor/org/hobby.org")
>
> I think we need to see the contents of this^^^^^ file.
>
> Thanks,
> Nick
>