When I tried to load my current account from its original position on the HD it reported “Can’t open this file” and “Unable to open the selected file”. The experiment with 2010 did not work so I uninstalled it and re-installed 2004 from the original disk. Before I did this I copied over my Quicken files and the backup files to a thumb drive for safety. This would not load until I uninstalled the current version.
This old version is not compatible with Windows 7 so in my preparations for Win 7 I thought I would try Quicken 2010 (the US version). I am running Quicken 2004, the last UK version produced by Intuit on Win XP Pro SP3, and have been doing so since 2004 without any problems.