[Orgmode] [babel] lob evaluation : a bug ?

[d . tchin]

Hi,

I try to evaluate function already defined in library-of-babel. 
But whatever the function I try to evaluate I have the following
error output get from buffer *Messages* :

setf: Wrong type argument: consp, nil

For example I use the following :

#+tblname: R-plot-example-data
| 1 |  2 |
| 2 |  4 |
| 3 |  9 |
| 4 | 16 |
| 5 | 25 |

#+srcname: R-plot(data=R-plot-example-data)
#+begin_src R :session *test*
plot(data)
#+end_src

When I evaluate block it works (with C-c C-c).

Then when I try to evaluate the following line :
#+lob: R-plot(data=R-plot-example-data)

With C-c C-c on this line I have the following answer :
Local setup has been refreshed

With C-c C-v e, emacs asks me : "Evaluate this code on your system ?"
I answer yes and I have the message :
Wrong type argument: consp, nil

I use the following versions of emacs and org-mode

GNU Emacs 22.3.1 (i386-mingw-nt5.1.2600) of 2008-09-06 on SOFT-MJASON
Org-mode version 7.01g