Can't see links in nodes > Warning: Parameter 1 to forward_node_view() expected to be a reference

Hi,

I just created a new D7.0 install, and wanted to test forward. I installed it, and configured the admin settings without any problem.
then I created a new content type named "produit" and checked the "Show forwarding link/form" option.

So the problem is that when I create a new "produit" content, I can't see the Forward link and i have this error message :
Warning: Parameter 1 to forward_node_view() expected to be a reference, value given in module_invoke_all() (line 817 of D:\\drupal7\includes\module.inc).

Did I make something wrong ?

Thanks for your help ;)