Hi all,
I use to put the label of my equations in this form: 'toto_eq1' and then to call it with the cross refrence menu. But when I close and re-open my Lyx file, this label become: 'toto_{e}q1' and my reference can no more find the label. I decided to change all my label in 'toto:eq1' and now it works. but I guess it should something to be corrected .. Matthieu -----------------------------------------------------------------------------