Correct programme downloaded now! Unfortunately no success. I dragged a file into the box as required. The response was 'access denied'. The file was still there on rebooting. However, I have found out elsewhere that there could be a Microsoft problem with Word 2010. It was suggested that I untick the 'preview pane' in the 'organise' menu. Success so far. The latest version of my document hasn't opened as 'read only' after several tests, and I have deleted the earlier 9 'read only' versions. Thanks for your help. Perhaps this info will be useful to you.