I use a Mac G5 running OS 10.3.9 for the past year with no problems. yesterday, I routinely downloaded a new software upgrade from Apple as I had done many times in the past without difficulty. I then discovered that many of my screens looked different and programs were behaving as if I was opening them for the first time. Then horror of horrors I discovered that all my folders and files in Address Book, Calendar, I-Photos and Bookmarks were gone. However, I-Music, E-mail, Word and Excel files were all still present. Some of it was backed up but not all. I'm hoping that the missing files can be recovered but I have no idea how to do this. Can anyone advise me? ----------------------------------------------------------- For information about MUGLO: http://www.freewebs.com/muglo -----------------------------------------------------------