Hi Everyone, I think I may have discovered the cause of the disk warnings I mentioned in yesterday's post . Before installing Acronis Disk Director, I was in Computer Management to look at the properties of my new Seagate External HD, which at that time had just one primary partition on it. I right clicked on it, and I saw a "mark partition as active " command which I thought would select the partition for resizing. I believe I have since learned that "active" means boot partition. Now when my external HD is plugged in, Disk Director shows 2 active partitions. But Computer Management shows only one, the external partition as being active. Disk Director must be right because when I unplug the external HD, my system still boots into XP. And Computer Management shows no partitions as being active on my internal disk.(My internal disk contains 2 partitions, one is a 32 mb. Dell diagnostic partition and the other is my C drive ) So my question is how do I reset my computer to it's original settings as pertains to which partition is active? Do I use Disk Director to delete the external primary partition that is also active ? Or use System Restore ? Feedback will be appreciated ! Thanks.