Hi, Following Emil Soleyman-Zomalan's message at Debian gtk-gnome list: http://lists.debian.org/debian-gtk-gnome/2004/11/msg00013.html I acknowledge that setting the gconf key from "/usr/bin/gnome-video-thumbnailer -s %s %u %o" to " /usr/bin/gnome-video-thumbnailer %u %o" apparently solves the problem. I use totem-xine. -- Joćo LuisPinto <jpinto@inescporto.pt>