You should be able to transfer your files into your new machine. Provided of course you can copy your PAF file on to a diskette, or better still a Zip disk. Just locate where you have your PAF data file now. Copy it to a diskette and place the copy in a similar file on your new machine. When you run PAF 4 on your new machine it will look for your data. You may have to indicate where it is. You can also do it by the back-up method you suggested, but you should find it easier with a straight copy of your data. You should find that it will open up as normal. Now that you have a new machine, you may find it more suitable to migrate to PAF 5.