If you are running version 4.2.0.2, it has problems with virtual drives, It clashed with my Virtual CD 4.5, and I had to uninstall it in order to get Clone CD to work. I then installed Virtual CD, and it worked. I do not have the ELBY DVD-ROM, so I didn't install the Virtual CloneDrive during the installation of Clone CD. I would advise you to uninstall Clone CD, reinstall it without the virtual drive, and then go into MSCONFIG, and uncheck ElbyCheck. That should eliminate your problems.