I've been using Partition Magic since version 3.0 or something and it's a very fine program. However I also once lost the contents of both partitions I was trying to merge. I usually use something like GetDataBack to get my data, but this time everything in both partitions was scrambled. That has been the only time I actually lost so much data and the only time PM malfunctioned for me. After a few hours of banging my head against the wall and wailing I remembered that against my usual negligence of making backups, I actually had copied that drive to another to test the other hard drive. So my story had a happy end, but I still second glc's suggestion to use resize instead of merge, it's far more safe. Oh and make a backup