TigerCat: I'm not sure which "new version" you're asking about. IE9? I've been happily using IE8 on a couple of machines here for more than 1 1/2 years, and can't think of any safety concerns specific to that version.
(Cacher) Gardez votre boîte au lettres propre en Archivant les messages importants et en utilisant régulièrement l'option Effacer Tous Les Messages. (pauloaguia) (Montrer toutes les astuces)