We have also been having issues with Art Sales Index. I have asked them to look into it but without response and have also been unsuccessful in logging in. I'm afraid it's rather difficult to get in touch with anyone to find out what is going on. We do use artnet.com but that isn't a free service. Kind regards Alan Alan Crookham | Research Centre Manager | The National Gallery Trafalgar Square, London, WC2N 5DN Email [log in to unmask] For up to date information on forthcoming workshops and free visits please see the online ARLIS/UK & Ireland Events Calendar 2013 at http://arlis.org.uk/