"Malicious Sources"

Hi, I am experiencing some strange problem with one of my pages which is classified as "Malicious Sources". This problem only arrises behind a compagny firewall on my Blog page. The page concerned is : http://stakepoint.com/news My other pages do not have this problem: What can the origin of this ? My image is an old Pier image, (its up for about 3 years now). Bes tregards, Maarten, The error message is as follows. ======================= English Access Denied (content_filter_denied) Your request was denied because of its content categorization: "Malicious Sources" Français Accès BLoqué (content_filter_denied) Votre requête a été bloquée car le contenu de la page est dans une catégorie interdite : "Malicious Sources"