Cheryl asks: Q1 - Does the older version 3.1 and/or 4 work with windows 8? The Calico Pie Product FAQ says YES, but even some early V5 CD had problems with some Windows 8 installations. http://www.family-historian.co.uk/support/pre-sales-questions gives details. Q2 - If Q1 is No and I have to upgrade to 5 to work with windows 8 can I still copy over from my memory stick the tree etc even though it was done on v3.1? YES all old versions of your data will work with V5, but will benefit from being updated to V4/V5 Project format. BUT if you have customised Reports, Diagrams, Queries, etc then you must copy more than just your trees. http://www.fhug.org.uk/wiki/doku.php?id=how_to:move_settings gives details. Q3 - V4 is it just a case of purchasing an upgrade to V5 as opposed to the full V5? YES, the "V4 to V5 Upgrade" is all you need and simplifies installation, as prior versions do not need installing. http://www.fhug.org.uk/wiki/doku.php?id=how_to:reinstall_family_historian gives details. I strongly advise you register for free at the FHUG http://www.fhug.org.uk and checkout all the advice on these topics, which have been asked and answered many times. Regards, Mike Tate