ACT! has two ways to backup your ACT! data: the first is File | Backup and the second is File | Save Copy As.
ACT!’s backup option backs up your ACT! data and files associated with ACT!, such as reports and layouts, just to name a few. ACT! 2005/2006 has modified this slightly: there are two separate files you should back up, database and personal files. ACT! 2006 has a scheduler in the Premium/Professional version of the product.
The second option is File | Save Copy As. I use this option before making major changes to my database, such as importing data. When you use this option you can copy the entire database’s data, but not the associated files, such as reports and layouts. In addition, you can make an empty copy of the database, which is a convenient way to copy the characteristics of the database without copying all the data.
Let me leave you with this question: have you backed up your data recently? Do it right now!