Create a link between items

Hello

I'm facing this problem :
I want to create an link between item A and item B.
When I create the link, I've this url

http://localhost/lithov2/index.php?option=com_content&view=article&id=72&catid=27


but after saving item A and clicking on the link, the item B URL is :
http://localhost/lithov2/component/content/article/27-lithotheque/pres-de-chez-vous/nord-alsace/graufthal/72-graufthal-eleve?Itemid=135
(and this page has no template at all)

And when I reach item B from category view, the URL is
http://localhost/lithov2/item/graufthal-eleve and template shows correctly.

I've check configuration menu, with SEF and URL rewriting ON.

I can't see what I can do now.
Any help ?
thank you

fot this do you use relation field ? or its direct link ?

Hello Micker

I used mainly relation field : first, relation field from JCE, then relation field from TinyMCE.
I don't want to use direct link to avoid break links if the items name change.

When I create the link with the relation field, link is ok.
http://localhost/lithov2/index.php?option=com_content&view=article&id=72&catid=27
But the link is rewrited to this long URL.

I have an other website, same configuration, (I've compared SEF and rewrite configuration) but don't know where to look now.
bye

no create a flexicontent relation field

Sorry Micker, but I don't understand your answer.
Do you mean that I have to use the flexicontent relation field ? Could you remenber me how ?

Thx

Oups, I just understand what you meant.
Ok, I'll try this.