Thanks for responding. My problem has morphed into a baffling one. Several programs got corrupted and I've reinstalled them. One, however, (the old MS Encarta 3006) will not reload because it says the program is already installed on my machine. I've rigorously uninstalled and delected every trace of this program I can find both with Revo Uninstaller and in the registry where I found a couple of entries. I can find NO trace of this program anywhere but the install disk still says it's installed. I'm really puzzled. Any thoughts how to fix this. I love this old Encarta which is no longer supported and hate to give it up. Thanks!