I have not used Disk Director Suite since I set up my disk partitions some months ago. Now, when I went to check a partition, I could not get into the program. The above message appeared and I was locked out. The same with Disk Editor. The only change I can think of since I partitioned the drives is that I have changed from XP Home to XP Pro. Can anyone help me with this problem? I saw a similar problem described in attempting to use the program from a CD, but I am using a version installed on a hard drive.