Hi again, BTW, since you could not find it, here is the analysis of the problem by Owen Taylor: http://bugzilla.gnome.org/show_bug.cgi?id=81059 and the suggested fix in the window manager: http://mail.gnome.org/archives/wm-spec-list/1999-November/msg00088.html -- Laurent Bonnaud. http://www.lis.inpg.fr/pages_perso/bonnaud/