Thank you very much Cal. I have just tried your suggestion and it has worked. Your explanation makes sense, as I do have a lot of investments and my file has occasionally crashed on the Portfolio Manager as well, although it had put itself right when I re-opened
the file.
Looking at the 3 files that were automatically created when the programme crashed yesterday, I have found a lot of references to McAfee (which I can't make any sense of, of course) in a file called "WER7823.tmp.appcompat". I wonder whether you have heard
of any conflicts between Microsoft Money and McAfee Antivirus. I would be happy to copy the text of that file here, if you think it would help. As I mentioned before, this is a very important file for me and I am keen to avoid any similar problems happening
again.
Thank you again. I really appreciate your help and your knowledge.