I maintain a computer which has Norton Antivirus & Firewall installed (2004 version) - trouble is it seems determined to prevent reading of any emails with an Excel attachment ie *.XLS files. It makes no attempt to blocks anything else. Any ideas please? This is a very frustrating problem. Using Norton 2003 Antivirus & Firewall s/w on an earlier PC there is no problem but note that the menus appear to be different so it is difficult to compare the individual option settings. Any input would be much appreciated especially if anyone else has seen this problem. Incidentally, this is occurring following a clean installation on a brand new system with no options specifically selected - so it can be considerd to be running under default conditions.