The automatic backup option in Quark has already saved me on countless occasions when I have being half way through a project and my mac has decided freeze. It's a really useful little tool as even people who save regularly like myself can get caught out. You can access it from the Edit Preferences menu. Once there just select Save and you will get the window shown (below). This allows you to choose Auto Save and also Auto Backup. I always set the auto backup because it is useful if your file gets corrupted and you want to go back to a previous version. You can set the number of revisions you wish to keep and the destination folder where they will be stored. In the event of problems you then have the option to access a previous version.
